TY  - BOOK
AU  - Hancock,Alan,fl1965-
TI  - Planning for educational mass media
SN  - 058241055X
PY  - 1977///
CY  - London
PB  - Longman
KW  - Audio
KW  - visual education
KW  - Mass media
N1  - Bibliography: p. 363-373
ER  -