Citazione Stile APA (7a Edizione)

Townsend, C. R. (2008). Essentials of ecology (3rd ed.). Blackwell.

Citazione stile Chigago Style (17a edizione)

Townsend, Colin R. Essentials of Ecology. 3rd ed. Malden, Mass: Blackwell, 2008.

Citatione MLA (9a ed.)

Townsend, Colin R. Essentials of Ecology. 3rd ed. Blackwell, 2008.