TY  - BOOK
AU  - Leith, G.O.M.
AU  - Peel, E.A. 
AU  - Curr, W.
TI  - A handbook of programmed learning
U1  - 371.3944 
PY  - 1964///
CY  - Edgbaston, Birmingham
PB  - University of Birmingham
KW  -  Programmed instruction
ER  -