Levy ,Charles Kingsley. (1979). Biology: Human perspectives. Goodyear.
Tohutoru Kātū Chicago (17th ed.)Levy ,Charles Kingsley. Biology: Human Perspectives. Santa Monica, California: Goodyear, 1979.
Tohutoro MLA (9th ed.)Levy ,Charles Kingsley. Biology: Human Perspectives. Goodyear, 1979.
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