United States. War Department. (1932). Engineer field manual: Volume II. Military engineering (tentative), part 2, defensive measures. GPO.
Chicago Style (17th ed.) CitationUnited States. War Department. Engineer Field Manual: Volume II. Military Engineering (tentative), Part 2, Defensive Measures. [Washington]: GPO, 1932.
MLA (9th ed.) CitationUnited States. War Department. Engineer Field Manual: Volume II. Military Engineering (tentative), Part 2, Defensive Measures. GPO, 1932.
Warning: These citations may not always be 100% accurate.