Mager, Robert Frank <br/><br/>
Preparing instructional objectives 
Robert F. Mager. 
 - 2. ed. 
 - Belmont, Calif.  Fearon Publishers  1975. 
 - 136 p.  ill., forms.  21 cm. 
<br/><br/><label>ISBN: </label>082245601X 
<br/><br/><label>LCCN: </label>7516518 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed Instruction