1888- <br/><br/>
History of trade unionism in the United States./ 
SeligPerlman 
 - N.Y. :  Kelley,  1950. 
 - 313p.  12.cm. 
<br/><br/>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor unions--History.--United States
<br/><br/><label>Dewey Class. No.: </label>331.880973  / PEH 1950