TY  - BOOK
AU  - Wittich,Walter A.
AU  - Schuller,Charles Francis
TI  - Audiovisual materials: their nature and use
T2  - Exploration series in education
U1  - 371.33 19
PY  - 1967///
CY  - New York
PB  - Harper & Row
KW  - Audio-visual education
ER  -