A-V on the air
By: [prepared by the National Association of Educational Broadcasters for the Audio-Visual Commission on Public Information ; text by Harold E. Hill]
Contributors: Audio-Visual Commission on Public Information; Hill, Harold Eugene, 1918-
Publisher: The Association
Published: 1950
Place of publication: New York
Language: eng
Number of pages: 19
Subjects: Audio-visual education; Television in education; Radio in education