APA (7th ed.) Citation

National Standards Association (U.S.). (1989). Worldwide government directory: With international organizations, 1990. Cambridge Information Group Directories.

Chicago Style (17th ed.) Citation

National Standards Association (U.S.). Worldwide Government Directory: With International Organizations, 1990. Bethesda, MD: Cambridge Information Group Directories, 1989.

MLA (9th ed.) Citation

National Standards Association (U.S.). Worldwide Government Directory: With International Organizations, 1990. Cambridge Information Group Directories, 1989.