Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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