APA (7th ed.) Citation

United Nations Educational, Scienific and Cultural Organization. (1953). News agencies, their structure and operation. s.n.

Chicago Style (17th ed.) Citation

United Nations Educational, Scienific and Cultural Organization. News Agencies, Their Structure and Operation. [Paris: s.n, 1953.

MLA (9th ed.) Citation

United Nations Educational, Scienific and Cultural Organization. News Agencies, Their Structure and Operation. s.n, 1953.