282807 Pickels, G. W. (1941). Drainage and flood-control engineering. New York : McGraw-Hill.
Chicago-čujuhus (17. p.)282807 Pickels, George Wellington. Drainage and Flood-control Engineering. New York : McGraw-Hill, 1941.
MLA-čujuhus (9. p.)282807 Pickels, George Wellington. Drainage and Flood-control Engineering. New York : McGraw-Hill, 1941.
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