United States. Office of Personnel Management. Optional forms. U.S. Office of Personnel Management.
Chicago Style (17th ed.) CitationUnited States. Office of Personnel Management. Optional Forms. Washington, District of Columbia: U.S. Office of Personnel Management.
MLA (9th ed.) CitationUnited States. Office of Personnel Management. Optional Forms. U.S. Office of Personnel Management.
Warning: These citations may not always be 100% accurate.