Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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