APA (7th ed.) Citation

United States. Office of Personnel Management. Retirement and Insurance Service, United States. Office of Personnel Management, & United States. Office of Personnel Management. Retirement and Insurance Group. Computing retirement benefits under the Civil Service Retirement System. U.S. Office of Personnel Management, Retirement and Insurance Service.

Chicago Style (17th ed.) Citation

United States. Office of Personnel Management. Retirement and Insurance Service, United States. Office of Personnel Management, and United States. Office of Personnel Management. Retirement and Insurance Group. Computing Retirement Benefits Under the Civil Service Retirement System. [Washington, D.C.]: U.S. Office of Personnel Management, Retirement and Insurance Service.

MLA (9th ed.) Citation

United States. Office of Personnel Management. Retirement and Insurance Service, et al. Computing Retirement Benefits Under the Civil Service Retirement System. U.S. Office of Personnel Management, Retirement and Insurance Service.