Thapa P J <br/><br/>
Modelling the efficiency of family and hired labour:illustrations from Nepalese agriculture 
Thapa P J 
 - USA  USA, Ashgate  2003 
 - 220p 
<br/><br/><label>ISBN: </label>0 7546 1853 6 
<br/><br/><label>Source: </label>Textbook