Hawkins, E. F. (1973). Hydrologic Engineering Methods for Water Resources Development. Defense Technical Information Center.
Lua i Stíl Chicago (17ú heag.)Hawkins, Edward F. Hydrologic Engineering Methods for Water Resources Development. Ft. Belvoir: Defense Technical Information Center, 1973.
Lua MLA (8ú heag.)Hawkins, Edward F. Hydrologic Engineering Methods for Water Resources Development. Defense Technical Information Center, 1973.
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