TY  - BOOK
AU  - Glaser,Robert
TI  - Teaching machines and programmed learning: a source book 
AV  - LB1028.5 T425
PY  - 1960///
CY  - [Lugar de publicación no identificado]
PB  - National education association, department of audio-visual intruction
KW  - Enseñanza programada
ER  -