TY  - BOOK
AU  - Haas & Packer
TI  - Preparation and use of audio-visual aids
U1  - 371.35 HAA-A 3139 
PY  - 1964///
CY  - Eanglewood
PB  - Prentice-Hill Inc
KW  - Methodology | Evaluation | Socialism | Education
N1  - Include Index; Motion Pictures; Filmstrips and Sound Slide; Teaching Slides
ER  -