Effective audio-visual :
SIMPSON, Robert S.
Effective audio-visual : - 3rd ed. - Oxford : Focal Press, 1987. - 253 p. ; cm.
Includes index.
Audio- visiual equipment.
Effective audio-visual : - 3rd ed. - Oxford : Focal Press, 1987. - 253 p. ; cm.
Includes index.
Audio- visiual equipment.