Helfgott, Roy B. <br/><br/>
Labor economics / 
Roy B. Helfgott 
 - New York :  Random House,  c1974. 
 - xii, 522 p. :  ill., figs. ;  23 cm. 
<br/><br/>Includes bibliographies and  index. 
<br/><br/>
<br/><br/><label>ISBN: </label>0394315359 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Working class--United States.<br/>Industrial relations--United States.<br/>Labor economics.
<br/><br/><label>LC Class. No.: </label>HD8072  / .H45 1974 
<br/><br/><label>Dewey Class. No.: </label>331.0973  / H474l