Citazione Stile APA (7a Edizione)

Volpe, E. P. (1993). Biology and human concerns (4th ed.). Wm.C.Brown.

Citazione stile Chigago Style (17a edizione)

Volpe, E. Peter. Biology and Human Concerns. 4th ed. Dubuque: Wm.C.Brown, 1993.

Citatione MLA (9a ed.)

Volpe, E. Peter. Biology and Human Concerns. 4th ed. Wm.C.Brown, 1993.