TY  - BOOK
AU  - ROBERT DE KIEFFER
TI  - MANUAL OF AUDIO-VISUAL TECHNIQUES
U1  - GN371.33 K542M 
PY  - 1955///
CY  - NEW JERSEY
PB  - PRENTICE-HALL, INC.
KW  - MANUAL OF AUDIO-VISUAL TECHNIQUES
N1  - MODERN BOOK HOUSE
ER  -