TY  - BOOK
AU  - Leedham, John
AU  - Unwin, Derick,
ED  - Programmed Learning Conference
ED  - Association for Programmed Learning
ED  - Leiestershire Programmed Learning Group
TI  - Aspects of educational technology: the proceedings of the programmed learning conference, held at Loughborough, 15-18 april, 1966 
AV  - LB1028.5 P76 1966
PY  - 1967///
CY  - London
PB  - Methuen
KW  - Enseñanza programada
KW  - Congresos
ER  -