TY  - BOOK
AU  - Gibson, Tony, 1919-
TI  - The Practice of ETV
SN  - 0090991001
U1  - 371.335 G451p 
PY  - 1970///
CY  - London
PB  - Hutchinson Educational Ltd
KW  - Television in education
KW  - Television in education -- Production
ER  -