APA (7th ed.) Citation

United States. Department of the Navy. (1931). Circular letters on communication subjects. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Department of the Navy. Circular Letters on Communication Subjects. [Washington]: [publisher not identified], 1931.

MLA (9th ed.) Citation

United States. Department of the Navy. Circular Letters on Communication Subjects. [publisher not identified], 1931.

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