World communications, press, radio film, television.
By: Pictographs by the Netherlands Statistical Foundation.
Contributors: Unesco. Division of Free Flow of Information
Edition: 3d ed.
Publisher: UNESCO
Published: 1956
Place of publication: [Paris]
Language: eng
Number of pages: 262
Subjects: Communication.
Notes: Bibliography: p. 252-262.
Previous editions by UNESCO Division of Free Flow of Information.