Constraints on Rice yields 

 - 322 p. :  ill. ;  25 cm . 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Rice Yields<br/>Rice<br/>Yields
<br/><br/><label>Dewey Class. No.: </label>633.18  / IRRI