Research and Education Association. (1978). The biology problem solver: A complete solution guide to any textbook in its subject. Research and Education Association.
Citace podle Chicago (17th ed.)Research and Education Association. The Biology Problem Solver: A Complete Solution Guide to Any Textbook in Its Subject. New York: Research and Education Association, 1978.
Citace podle MLA (9th ed.)Research and Education Association. The Biology Problem Solver: A Complete Solution Guide to Any Textbook in Its Subject. Research and Education Association, 1978.
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