TY  - BOOK
AU  - De Kieffer, R. E.
AU  - Cochran, Lee W.
TI  - Manual of audio-visual techniques
U1  - 371.3944 
PY  - 1966///
CY  - New Delhi
PB  - Prentice Hall of India Pvt. Ltd.
KW  - Audio-visual education
N1  - ENG
ER  -