APA (7th ed.) Citation

National Standards Association (U.S.). (1987). Worldwide government directory, with international organizations. National Standards Association.

Chicago Style (17th ed.) Citation

National Standards Association (U.S.). Worldwide Government Directory, with International Organizations. Bethesda, MD: National Standards Association, 1987.

MLA (8th ed.) Citation

National Standards Association (U.S.). Worldwide Government Directory, with International Organizations. National Standards Association, 1987.