United States. Department of the Army. (1979). Engineer topographic units. [Dept. of Defense], Dept. of the Army, Headquarters.
Chicago Style (17th ed.) CitationUnited States. Department of the Army. Engineer Topographic Units. Washington: [Dept. of Defense], Dept. of the Army, Headquarters, 1979.
MLA (9th ed.) CitationUnited States. Department of the Army. Engineer Topographic Units. [Dept. of Defense], Dept. of the Army, Headquarters, 1979.
Warning: These citations may not always be 100% accurate.