United States. Office of Personnel Management. Retirement and Insurance Service. (1998). Life events and your retirement and insurance benefits (for annuitants) (Rev. July 1998.). U.S. Office of Personnel Management, Retirement and Insurance Service.
Chicago Style (17th ed.) CitationUnited States. Office of Personnel Management. Retirement and Insurance Service. Life Events and Your Retirement and Insurance Benefits (for Annuitants). Rev. July 1998. [Washington, DC]: U.S. Office of Personnel Management, Retirement and Insurance Service, 1998.
MLA (9th ed.) CitationUnited States. Office of Personnel Management. Retirement and Insurance Service. Life Events and Your Retirement and Insurance Benefits (for Annuitants). Rev. July 1998. U.S. Office of Personnel Management, Retirement and Insurance Service, 1998.