TY  - BOOK
AU  - Wittich,Walter A.
AU  - Schuller,Charles Francis
TI  - Audiovisual materials: their nature and use
AV  - LB1043 .W58 1967
U1  - 371.335 WIT 
PY  - 1967///]
CY  - New York
PB  - Harper & Row
KW  - Audio-visual education
ER  -