Purves, W. K., & Orians, G. H. (1983). Life: The science of biology. W. Grant Press.
Tohutoru Kātū Chicago (17th ed.)Purves, William Kirkwood, me Gordon H. Orians. Life: The Science of Biology. Sinauer Associates: W. Grant Press, 1983.
Tohutoro MLA (9th ed.)Purves, William Kirkwood, me Gordon H. Orians. Life: The Science of Biology. W. Grant Press, 1983.
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