The audio-visual handbook
By: by Ellsworth C. Dent.
Publisher: The Society for visual education, inc.
Published: 1939
Place of publication: Chicago, Ill
Language: eng
Number of pages: 211
Subjects: Visual education.; Motion pictures in education.; Radio in education.
Notes: "Sources of information, materials and equipment": p. 185-211.
"Third edition."--Author's note.