TY  - BOOK
AU  - Lumsdine A A ed
AU  -  Glaser Robert ed
TI  - Teaching machines and programmed learning :  a source book
U1  - T:3,1, K0 (PD) 
PY  - 1960///
CY  - wahington
PB  - National education Addociation     
KW  - EDUCATION
ER  -