Survey of British research in audio-visual aids (including cumulative index, 1945-1977)
Coppen, Helen(Helen Elizabeth)
Rodwell, Susie.
National Committee for Audio-Visual Aids in Education.
Educational Foundation for Visual Aids (Great Britain).
London Educational Foundation for Visual Aids, National Committee for Audio-Visual Aids in Education Educational Foundation for Visual Aids
1972,
London
[1978?]
Previous ed.: 1968
Includes index
Audio-visual education
Education