APA (7th ed.) Citation

United States. Militia Bureau. (1931). Supplement to Circular 25 A-21, 1930; field training camps, general. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Militia Bureau. Supplement to Circular 25 A-21, 1930; Field Training Camps, General. Washington: [publisher not identified], 1931.

MLA (9th ed.) Citation

United 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.