APA (7th ed.) Citation

United States. Office of Personnel Management. (1923). Personnel Classification Board. U.S. GPO.

Chicago Style (17th ed.) Citation

United States. Office of Personnel Management. Personnel Classification Board. Washington: U.S. GPO, 1923.

MLA (9th ed.) Citation

United States. Office of Personnel Management. Personnel Classification Board. U.S. GPO, 1923.

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