Citazione Stile APA (7a Edizione)

Valk, A. v. d. (2012). The biology of freshwater wetlands (Second edition.). Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Valk, Arnold van der. The Biology of Freshwater Wetlands. Second edition. Oxford: Oxford University Press, 2012.

Citatione MLA (9a ed.)

Valk, Arnold van der. The Biology of Freshwater Wetlands. Second edition. Oxford University Press, 2012.