APA (7th ed.) Citation

United States Civil Service Commission. (1922). Instructions concerning method of conducting examinations for position of 4th-class postmaster. U.S. GPO.

Chicago Style (17th ed.) Citation

United States Civil Service Commission. Instructions Concerning Method of Conducting Examinations for Position of 4th-class Postmaster. Washington: U.S. GPO, 1922.

MLA (9th ed.) Citation

United States Civil Service Commission. Instructions Concerning Method of Conducting Examinations for Position of 4th-class Postmaster. U.S. GPO, 1922.