Johnson S. Au. <br/><br/>
Green revolution 

 - London  Hamish hamilton England        1972 
 - 218p  cm. 
<br/><br/><label>Standard No.: </label>17,048 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>X9J.1.N7, L2