O*net Dictionary of occupational titles 

 - Third 
 - xviii, 699 pages :   illustrations ;   28 cm 
<br/><br/><label>ISBN: </label>1563709635 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Occupations - United States - Dictionaries ; Occupations - United States - Classification
<br/><br/><label>Dewey Class. No.: </label>331.7003