TY  - BOOK
AU  - Leedham,L.
AU  - Romiszowski,A.J
TI  - Videocassettes in education and training: proceedings of a conference organised by the Association for Programmed Learning and Educational Technology ... July 4th 1973
SN  - 7850383706
PY  - 1973///
CY  - London
PB  - Kogan Page
KW  - Video tapes in education
ER  -