United States Civil Service Commission. (1920). Circular to all officers concerned in administration of Retirement Act of May 22, 1920. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States Civil Service Commission. Circular to All Officers Concerned in Administration of Retirement Act of May 22, 1920. [Washington]: [publisher not identified], 1920.
MLA (9th ed.) CitationUnited States Civil Service Commission. Circular to All Officers Concerned in Administration of Retirement Act of May 22, 1920. [publisher not identified], 1920.
Warning: These citations may not always be 100% accurate.