Davies, D. G. (1967). Fresh water: The precious resource. Natural Press for the American Museum of Natural History.
Čikaški stil citiranja (17. izdanje)Davies, Delwyn G. Fresh Water: The Precious Resource. GArden City, N. Y: Natural Press for the American Museum of Natural History, 1967.
MLA način citiranja (9. izdanje)Davies, Delwyn G. Fresh Water: The Precious Resource. Natural Press for the American Museum of Natural History, 1967.
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