Educational communications and technology
Subtitle: an introduction
By: John B. Haney, Eldon J. Ullmer.
Contributors: Ullmer, Eldon J., joint author.
Edition: 3d ed.
Publisher: W. C. Brown Co.
Published: 1980
Place of publication: Dubuque, Iowa
Language: eng
Number of pages: 252
Subjects: Audio-visual education; Educational technology
Notes: Bibliography: p. 215-239.
Includes index.