Mader, S. S. (1990). Biology (3rd ed.). WCB.
Tohutoru Kātū Chicago (17th ed.)Mader, Sylvia S. Biology. 3rd ed. Boulevard: WCB, 1990.
Tohutoro MLA (9th ed.)Mader, Sylvia S. Biology. 3rd ed. WCB, 1990.
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