Cita APA (7th ed.)

Minor, V. C., & Purves, W. K. (2001). Study guide to accompany Life, the science of biology: By Purves, Sadava, Orians, and Heller (6th ed.). Sinauer Associates W.H. Freeman and Co. [distributor].

Cita Chicago (17th ed.)

Minor, V. Christine, i William K. Purves. Study Guide to Accompany Life, the Science of Biology: By Purves, Sadava, Orians, and Heller. 6th ed. Sunderland, Mass., Gordonsville, Va: Sinauer Associates W.H. Freeman and Co. [distributor], 2001.

Cita MLA (9th ed.)

Minor, V. Christine, i William K. Purves. Study Guide to Accompany Life, the Science of Biology: By Purves, Sadava, Orians, and Heller. 6th ed. Sinauer Associates W.H. Freeman and Co. [distributor], 2001.