TY  - BOOK
AU  - Mager, Robert Frank,
AU  - 
ED  - 
ED  - 
ED  - 
ED  - 
SN  - 082245601X :
SN  - 2
PY  - 1975///];copyright 1975.46
CY  - Belmont, Calif.
PB  - Fearon-Pitman Publishers
KW  - 
KW  - 2
KW  - 0
KW  - 6
KW  - 20
KW  - Programmed instruction
N1  - First ed. published in 1961 under title: Preparing objectives for programmed instruction; 5
ER  -