Mager, Robert F.  1923- <br/><br/>
Preparing instructional objectives 
by Robert F. Mager 
 - Rev. 2nd ed. 
 - London  Kogan Page  1991 
 - 136 p. : ill. ; 21cm. 
<br/><br/> First ed. published in 1961 under title: Preparing objectives for Programmed instruction 
<br/><br/><label>ISBN: </label>0749405945 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction