TY  - BOOK
AU  - Mager,Robert Frank
TI  - Preparing instructional objectives
U1  - 371.3944 
PY  - 1962///]
CY  - Palo Alto, Calif.
PB  - Fearon Publishers
KW  - Programmed instruction
N1  - "Previously published as Preparing objectives for programmed instruction."
ER  -