Teaching and media
Subtitle: a systematic approach
By: [by] Vernon S. Gerlach [and] Donald P. Ely.
Contributors: Ely, Donald P., joint author.
Publisher: Prentice-Hall
Published: 1971
Place of publication: Englewood Cliffs, N.J
Language: eng
Number of pages: 392
Subjects: Audio-visual education; Teaching -- Aids and devices
Notes: Includes bibliographies.