(1972). Flow chart of the tropical waler balance model. Amsterdam : Elsevier Scientific.
Čikaški stil citiranja (17. izdanje)Flow Chart of the Tropical Waler Balance Model. Amsterdam : Elsevier Scientific, 1972.
MLA način citiranja (9. izdanje)Flow Chart of the Tropical Waler Balance Model. Amsterdam : Elsevier Scientific, 1972.
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