APA (7th ed.) Citation

United States Civil Service Commission. (1919). Instructions to applicants, 9th U.S. Civil-Service District, headquarters at St. Louis, Mo. U.S. GPO.

Chicago Style (17th ed.) Citation

United States Civil Service Commission. Instructions to Applicants, 9th U.S. Civil-Service District, Headquarters at St. Louis, Mo. Washington: U.S. GPO, 1919.

MLA (9th ed.) Citation

United States Civil Service Commission. Instructions to Applicants, 9th U.S. Civil-Service District, Headquarters at St. Louis, Mo. U.S. GPO, 1919.