APA (7th ed.) Citation

United States. Office of Personnel Management. (1989). Military service credit under the Civil Service Retirement System. [Personnel Management Office].

Chicago Style (17th ed.) Citation

United States. Office of Personnel Management. Military Service Credit Under the Civil Service Retirement System. [Washington, D.C.?]: [Personnel Management Office], 1989.

MLA (9th ed.) Citation

United States. Office of Personnel Management. Military Service Credit Under the Civil Service Retirement System. [Personnel Management Office], 1989.