Psacharopoulos G <br/><br/>
Returns to ecucation   An international comparison    
Psacharopoulos G; Hinchiliffe K 
 - Amsterdam  Elsevier            1973 
 - xiii,216p.  cm. 
<br/><br/><label>ISBN: </label>0444410279 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>X:77ogT.1.N7, L3