Bagby, G. (1965). Discovery problems in biology: A complete study guide for use with any biology textbook. College Entrance Book.
Citace podle Chicago (17th ed.)Bagby, Grace. Discovery Problems in Biology: A Complete Study Guide for Use with Any Biology Textbook. New York: College Entrance Book, 1965.
Citace podle MLA (9th ed.)Bagby, Grace. Discovery Problems in Biology: A Complete Study Guide for Use with Any Biology Textbook. College Entrance Book, 1965.
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