APA (7e ed.) Bronvermelding

Davies, D. G. (1967). Fresh water: The precious resource. Natural Press for the American Museum of Natural History.

Chicago (17e ed.) Bronvermelding

Davies, Delwyn G. Fresh Water: The Precious Resource. GArden City, N. Y: Natural Press for the American Museum of Natural History, 1967.

MLA (9e ed.) Bronvermelding

Davies, Delwyn G. Fresh Water: The Precious Resource. Natural Press for the American Museum of Natural History, 1967.