International labour office <br/><br/>
International standard classification of occupations 

 - Switzerland  ; Geneva  , 1969 
 - v,355p. 
<br/><br/><label>ISBN: </label> £2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Occupations<br/>Occupations--Classification
<br/><br/><label>Dewey Class. No.: </label>331.7  / INT