282807 Pickels, G. W. (1941). Drainage and flood-control engineering. New York : McGraw-Hill.
Čikaški stil citiranja (17. izdanje)282807 Pickels, George Wellington. Drainage and Flood-control Engineering. New York : McGraw-Hill, 1941.
MLA način citiranja (9. izdanje)282807 Pickels, George Wellington. Drainage and Flood-control Engineering. New York : McGraw-Hill, 1941.
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