TY  - BOOK
AU  - Hancock,Alan
TI  - Producing for educational mass media
SN  - 9231012584
U1  - 371.33 HAN 
PY  - 1976///
CY  - Paris
PB  - Unesco Press
KW  - Television in education
KW  - Audio-visual education
KW  - Motion pictures
ER  -