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Describes the circulation of the blood, its composition, and its function in supporting cell processes. Also explains blood typing and the test for the Rh factor.
Encyclopedia Britannica, 331 N. LaSalle St., Chicago, IL 60610, Phone: (312)347-7159, Toll-free: 800-323-1229, Fax: (312)294-2104, URL: http://www.britannica.com
Available on VHS
Running time 22 minutes.
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