TY  - BOOK
AU  - Keller,Fred S.
TI  - The Keller plan handbook
T2  - Benjamin PSI
SN  - 0805352392
U1  - 371.394 
PY  - 1974///
CY  - Menlo Park CA: 
PB  - W A Benjamin
KW  - Teaching - Methods
KW  - Teaching - Programmed instruction
KW  - Education - Methods - Self-instruction
KW  - Individualised instruction
ER  -