Mager, Robert Frank, 1923-
Preparing instructional objectives /
Robert F. Mager.
- 2d ed.
- Belmont, Calif. : Fearon-Pitman Publishers, c1975.
- 136 p. : ill. ; 21 cm.
First ed. published in 1961 under title: Preparing objectives for programmed instruction.
082245601X :
Programmed instruction.
371.3 / MAP 1975