Becker, Gary S. <br/><br/>
Human Capital :  a theoretical and empirical analysis, with special reference to education / 
Gary S. Becker 
 - 3 
 - Chicago :  The University of Chicago Press,  1993       
 - 390 p. 
<br/><br/><label>ISBN: </label>0226041204 
<br/><br/><label>LC Class. No.: </label>LC 66 B395h 1993