Phelps, Orme W. <br/><br/>
Introduction to labour economics/4e 

 - 4th ed. 
 - New York  McGraw Hill  1955 
 - xv, 555p. 
<br/><br/><label>Subjects--Index Terms: </label>Labour economics 
<br/><br/><label>Dewey Class. No.: </label>331  / PHE