WILSON, E. (1990). Engineering Hydrolgy E.m.wilson. Macmillan.
Lua i Stíl Chicago (17ú heag.)WILSON, E.M. Engineering Hydrolgy E.m.wilson. Macmillan, 1990.
Lua MLA (8ú heag.)WILSON, E.M. Engineering Hydrolgy E.m.wilson. Macmillan, 1990.
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