Economic development as an adaptive process  the green revolution in the Indian Punjab 
Richard H. Day, Inderjit Singh  
 - London  Cambridge University Press  1977  
 - x, 326p  ill  23cm. 
<br/><br/><label>ISBN: </label>052121114X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--Economic aspects--Mathematical models--India--Punjab (State)<br/>Economic development--Mathematical models
<br/><br/><label>LC Class. No.: </label>HD2075