Mager, Robert Frank,  1923- <br/><br/>
Developing vocational instruction / 
Robert F. Mager and Kenneth M. Beach Jr. 
 - Calif. :  Fearon Publishers,  1967. 
 - x, 83 p. ;  22 cm. 
<br/><br/> Open access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Vocational education--Study and teaching.