United States Civil Service Commission. (1913). Instructions to applicants for mechanical trades and similar noneducational positions in Custodian Service, Engineer Department at large, Quartermaster Corps, and other field branches. GPO.
Chicago Style (17th ed.) CitationUnited States Civil Service Commission. Instructions to Applicants for Mechanical Trades and Similar Noneducational Positions in Custodian Service, Engineer Department at Large, Quartermaster Corps, and Other Field Branches. [Washington]: GPO, 1913.
MLA (9th ed.) CitationUnited States Civil Service Commission. Instructions to Applicants for Mechanical Trades and Similar Noneducational Positions in Custodian Service, Engineer Department at Large, Quartermaster Corps, and Other Field Branches. GPO, 1913.