Manual of audio-visual techniques.
De Kieffer, R. E.
Manual of audio-visual techniques. - New Delhi Prentice Hall of India Pvt. Ltd. 1966 - ix, 254p.
ENG
Audio-visual education
371.3944 / DE
Manual of audio-visual techniques. - New Delhi Prentice Hall of India Pvt. Ltd. 1966 - ix, 254p.
ENG
Audio-visual education
371.3944 / DE