United States. Army. Corps of Engineers. Graphic standards manual (Rev. 9, 1994.). U.S. Army Corps of Engineers.
Chicago Style (17th ed.) CitationUnited States. Army. Corps of Engineers. Graphic Standards Manual. Rev. 9, 1994. Washington, D.C.: U.S. Army Corps of Engineers.
MLA (9th ed.) CitationUnited States. Army. Corps of Engineers. Graphic Standards Manual. Rev. 9, 1994. U.S. Army Corps of Engineers.
Warning: These citations may not always be 100% accurate.