Citazione Stile APA (7a Edizione)

Pechenik, J. A. (2010). A short guide to writing about biology (7th ed.). Longman.

Citazione stile Chigago Style (17a edizione)

Pechenik, Jan A. A Short Guide to Writing About Biology. 7th ed. New York: Longman, 2010.

Citatione MLA (9a ed.)

Pechenik, Jan A. A Short Guide to Writing About Biology. 7th ed. Longman, 2010.