Não informado. (1977). Coastal engineering technical aid. U.S. Army Coastal Engineering Research Center.
Chicago-referens (17:e uppl.)Não informado. Coastal Engineering Technical Aid. Fort Belvoir, Va: U.S. Army Coastal Engineering Research Center, 1977.
MLA-referens (8:e uppl.)Não informado. Coastal Engineering Technical Aid. U.S. Army Coastal Engineering Research Center, 1977.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.