Research in labor economic  a research annual / 
editor: Ronald G. Ehrenberg 
 - Greenwich, Conn.  JAI Press  1977- 
 - v. :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0892323124 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Labor economics--Addresses, essays, lectures