Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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