Valk, A. v. d. (2006). The biology of freshwater wetlands. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Valk, Arnoud van der. The Biology of Freshwater Wetlands. Oxford ; New York: Oxford University Press, 2006.
Lua MLA (9ú heag.)Valk, Arnoud van der. The Biology of Freshwater Wetlands. Oxford University Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.