INTERNATIONAL Symposium oncropping system research and deve <br/><br/>
Cropping system research and development for the Asian rice farmer 

 - Phillippines  The International Rice Research Institute  1977 
 - 454 p. 
<br/><br/><label>ISBN: </label>113888 
<br/><br/><label>Dewey Class. No.: </label>633.18  / INT