• (A plus B) Squared (1952)
• Adaptations for Survival: Birds (1969)
• An Age of Revolutions (1976)
• The Aged Land (1962)
• AIDS Alert for Youth (1990)
• Alfareros de Puebla (1968)
• Amphibians (1977)
• Animal Behavior: Spring (1973)
• Animal Behavior: Winter (1973)
• Animals and the Sun (1975)
• Animals Prepare for Winter (1972)
• Animals That Gnaw and Burrow (1963)
• Animals With One Foot (1977)
• Ant Life (1981)
• Antony and Cleopatra (1974)
• The Archaeologist and How He Works (1965)
• Around a Big Lake (1962)
• Au Revoir Village (1968)
• Aujourd'hui Nous Visitons Paris (1962)
• Autrefois le Deluge (1976)
• The Ball That Wanted to Play (1971)
• Beach and Tidepool Life (1968)
• Bears (1977)
• Bird Wing Adaptations (1964)
• Birds and Migration (1964)
• Birds and Their Young (1981)
• The Boreal Forest (1963)
• Butterfly and Moth Field Studies (1966)
• Butterfly: The Monarch's Life Cycle (1975)
• Cada Dia Se Mas (1963)
• The Cat Family (1965)
• Cattle (1973)
• Circle Circus (1979)
• The Cities of Islam: Lahore (1991)
• Colonial Living (1957)
• Como Se Hace una Guitarra (1974)
• Congruent Triangles (1978)
• Conservation and Balance in Nature (1963)
• Deer and Antelope (1965)
• The Deer Family of North America (1965)
• Desert Ecology (1970)
• Design and Nature (1977)
• Deutschland Heute (1968)
• Die Bezaubernde Schweiz (1962)
• Die Tiere in der Stadt (1960)
• The Dog Family (1965)
• Dragon Fold. . .and Other Ways to Fill Space (1979)
• Easter Island (1979)
• Ecology of Pronghorn, Mountain Sheep, and Mountain Goats (1966)
• Ecology: Olympic Rain Forest (1970)
• El Cumpleanos de Pepita (1957)
• El Organillero de Madrid (1962)
• Electrics (1981)
• Elephants (1973)
• Energy Sources (1983)
• Escale a Paris (1968)
• Espana Es Asi (1973)
• Experimenting with Air (1961)
• Exploring with the Time-Lapse Camera (1968)
• Facts about Film (2nd edition) (1959)
• Facts about Film (3rd edition) (1975)
• Facts about Projection (2nd edition) (1959)
• Facts about Projection (3rd edition) (1975)
• Fiesta de San Fermin (1968)
• The Fight Against Microbes (1966)
• A Film about Cinematography (1974)
• A Film about Film Editing (1974)
• A Film about Filmmaking (1972)
• Films about Filmmaking Series (197?)
• A Flowering Plant from Seed to Seed (1981)
• The Forbidden Women: Paintings by Paul Delvaux (1978)
• Formulas in Mathematics (1960)
• Frances and Her Rabbit (1955)
• Francoise Et Son Lapin (1962)
• German Language Series (1969)
• German Teaching Series (1972)
• The Greeks (1975)
• Hamlet (1974)
• The Happiness of Being Loved: Paintings by Felix Labisse (1978)
• Heat Causes Expansion (1966)
• Henry IV, Part II (1974)
• Herman Melville: Consider the Sea (1982)
• Holding Our Ground (1987)
• The Horse Family (1965)
• How Do You Count? (1963)
• How Plants Climb (1975)
• How Plants Move (1975)
• How Seeds Are Made (1975)
• How Seeds Are Scattered (1975)
• How Seeds Sprout (1975)
• Ici on Parle Francais (1960)
• The Idea of Numbers: An Introduction to Number Systems (1961)
• Insect Eaters (1965)
• Insect Series (1978)
• Journey to the Center of Triangle (1977)
• Julius Caesar (1974)
• Kids in Crisis (1985)
• La Guitarra Espanola (1974)
• Language of Algebra (1960)
• Le Saisons (1969)
• Life in the Deciduous Forest (1962)
• The Light Here Kindled (1966)
• The Liver (1979)
• Living Science Series (1963)
• Logarithms and the Slide Rule Series (1960)
• Looking at Animals (197?)
• Looking at Plants (1975)
• The Lymphatic System (1979)
• Macbeth (1974)
• Making a Sound Film (1973)
• The Man Who Stole Dreams (1984)
• Marguerite a la Ferme (1962)
• Meiosis (1956)
• Mexico y Sus Contornos (1958)
• The Middle Ages (1974)
• The Miseries of War: Paintings by Felix Labisse (1978)
• Misery in the Borinage (1979)
• Mitosis (1959)
• Modmath (1975)
• Monkeys (1965)
• Mountain Life Zone Communities (1976)
• Much Ado about Nothing (1974)
• The Myth of Nationalism (1976)
• Myth, Superstition, and Science (1960)
• Nathaniel Hawthorne: Light in the Shadows (1982)
• Open Window (1957)
• Othello (1974)
• Outline History of Europe Series (1975)
• Paquita y Su Conejo (1974)
• Paul Delvaux in His Studio (1978)
• Petey the Pelican (1978)
• Pigs and Hippos (1973)
• PKU: Preventable Mental Retardation (2nd Edition) (1966)
• The Pond (1961)
• Population and Pollution (1971)
• Possibly So, Pythagoras! (1963)
• The Prairie (1963)
• Proportion at Work (1960)
• P'tit Jean S'en Va Aux Chantiers (1961)
• Puerto Rico Es Asi (1973)
• Putting Animals in Groups (1956)
• Rabbits and Hares (1965)
• Reproduction Cycle of Angel Fish (1971)
• Rhinos (1973)
• Richard II (1974)
• Richard III (1974)
• River People of Chad (1969)
• Road to Santiago: France (1968)
• Road to Santiago: Spain (1968)
• Robert Browning--His Life and Poetry (1972)
• The Romans (1974)
• Romeo and Juliet (1974)
• Russian Language Series (1963)
• Science of the Sea (1958)
• Scientific Method in Action (1960)
• Sculpture (1969)
• Sculpture at the Middelheim (1969)
• Sculpture Today (1969)
• The Seasons Series (1979)
• Sejour en France Series (1970)
• The Shakespeare Series (1974)
• Sheep and Goats (1965)
• Similar Triangles (1976)
• Similar Triangles in Use (1961)
• Singing Frogs and Toads (1961)
• Spanish Language Series (1969)
• The Stream (1962)
• Symphony of a World City: Berlin As It Was (1977)
• The Taming of the Shrew (1974)
• Television: Line by Line (1970)
• Temperature Regulation (1979)
• The Tempest (1974)
• Terra Sancta: A Film of Israel (1969)
• They Steamed to Glory (1962)
• Towards a Modern Europe (1975)
• Trees: How to Know Them (1970)
• Triangle Series (197?)
• Trio for Three Angles (1968)
• Vacant Lot (1961)
• Vislumbres de Madrid y Toledo (1963)
• Watercolors in Action (1953)
• We Grew a Frog (1972)
• Zoo Animals in the Wild (1979)

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