APA (7th ed.) Citation

(2001). Citizenship laws of the world. U.S. Office of Personnel Management, Investigations Service.

Chicago Style (17th ed.) Citation

Citizenship Laws of the World. [Washington, D.C.?]: U.S. Office of Personnel Management, Investigations Service, 2001.

MLA (9th ed.) Citation

Citizenship Laws of the World. U.S. Office of Personnel Management, Investigations Service, 2001.