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.
Chicago Style citaatPurves, William K., Craig H. Heller, en Gordon H. Orians. Life, the Science of Biology. 3rd ed. Sunderland ; New York: Sinauer Associates : W.H. Freeman, 1992.
MLA citatiePurves, William K., Craig H. Heller, en Gordon H. Orians. Life, the Science of Biology. 3rd ed. Sunderland ; New York: Sinauer Associates : W.H. Freeman, 1992.
Let op: Deze citaties zijn niet altijd 100% accuraat.