Mager, Robert Frank,  1923- <br/><br/>
Preparing instructional objectives /  eng 
Robert F. Mager. 
 - 2d ed. 
 - Belmont, Calif. :  Fearon-Pitman Publishers,  c1975. 
 - 136 p. :  ill. ;  21 cm. 
<br/><br/> First ed. published in 1961 under title: Preparing objectives for programmed instruction. 
<br/><br/><label>ISBN: </label>082245601X  
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction.