Mager, Robert F. <br/><br/>
Preparing instructional objectives / 
Robert F. Mager. 
 - Rev. 2nd ed. 
 - Belmont, Calif. :   Lake Pub. Co.,   ♭1984. 
 - vi, 136 p. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>1561033413  
<br/><br/><label>LC Class. No.: </label>LB1028.5  / .M68 1984