TY  - BOOK
AU  - Sands, Lester B.
TI  - Audio-vedio procedures in teaching
U1  - 371.33 
PY  - 1956///
CY  - New York 
PB  - The Ronald Press Company 
KW  - Education
KW  - Communication tecnology
KW  - Audio vedio teaching
N1  - Includes appendix, bibliographical references and index
ER  -