Purves, W. K., Heller, C. . H., & Orians, G. H. (1992). Life, the science of biology (3rd ed.). Sunderland ; New York: Sinauer Associates : W.H. Freeman.
Παραπομπή Chicago StylePurves, William K., Craig H. Heller, και Gordon H. Orians. Life, the Science of Biology. 3rd ed. Sunderland ; New York: Sinauer Associates : W.H. Freeman, 1992.
Deismireacht MLAPurves, William K., Craig H. Heller, και Gordon H. Orians. Life, the Science of Biology. 3rd ed. Sunderland ; New York: Sinauer Associates : W.H. Freeman, 1992.
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