Mager, Robert F.  <br/><br/>
Preparing instructional objectives / 
Robert F. Mager . 
 - Revised second edition  
 - vi, 136 pages :  illustrations ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0822443414  Hadiah 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Programmed instruction