United States. Militia Bureau. (1931). Supplement to Circular 25 A-21, 1930; field training camps, general. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Militia Bureau. Supplement to Circular 25 A-21, 1930; Field Training Camps, General. Washington: [publisher not identified], 1931.
MLA (9th ed.) CitationUnited States. Militia Bureau. Supplement to Circular 25 A-21, 1930; Field Training Camps, General. [publisher not identified], 1931.
Warning: These citations may not always be 100% accurate.