TY  - BOOK
AU  - Brooker, FLoyde.E
AU  - Corey,Stephen M
AU  - Henry,Nelson.B, ed
AU  - National Society for the Study of Education, CHicago USA
TI  - Audio -Visual materials of instruction, Part I
CY  - Chicago
KW  - Education
KW  - Teaching - Audio-Visual
KW  - Teaching Aids
ER  -