The preparation of occupational instructors ; a suggested course guide 

 - Washington :  Department of Health, Education and Welfare,  1965 
 - 176 p. 
 - OE-80042 .
 - OE-80042 .
<br/><br/><label>LCCN: </label>39891 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educación vocacional.
<br/><br/><label>Dewey Class. No.: </label>371.42  / E8