Citazione Stile APA (7a Edizione)

Owen, D. F. (1980). What is ecology? (2nd ed.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Owen, Denis F. What Is Ecology? 2nd ed. Oxford: Oxford University Press, 1980.

Citatione MLA (9a ed.)

Owen, Denis F. What Is Ecology? 2nd ed. Oxford University Press, 1980.