APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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