Improving the work skills of the nation ; proceedings of a conference on skilled manpower... 

 - New York :  Columbia University Press,  1955 
 - 203 p. 
<br/><br/><label>LCCN: </label>30793 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mano de obra.<br/>Trabajo y trabajadores.
<br/><br/><label>Dewey Class. No.: </label>331.761  / N38