Citazione Stile APA (7a Edizione)

Valk, A. v. d. (2006). The biology of freshwater wetlands. Oxford University Press.

Citazione stile Chigago Style (17a edizione)

Valk, Arnoud van der. The Biology of Freshwater Wetlands. Oxford ; New York: Oxford University Press, 2006.

Citatione MLA (9a ed.)

Valk, Arnoud van der. The Biology of Freshwater Wetlands. Oxford University Press, 2006.