APA (7th ed.) Citation

United States. Government Printing Office. (1919). Circular. [publisher not identified].

Chicago Style (17th ed.) Citation

United States. Government Printing Office. Circular. Washington: [publisher not identified], 1919.

MLA (9th ed.) Citation

United States. Government Printing Office. Circular. [publisher not identified], 1919.

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