APA (7th ed.) Citation

United States. Marine Corps. (1926). Army correspondence courses. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Marine Corps. Army Correspondence Courses. [Washington]: [publisher not identified], 1926.

MLA (9th ed.) Citation

United States. Marine Corps. Army Correspondence Courses. [publisher not identified], 1926.

Warning: These citations may not always be 100% accurate.