New vistas in crop yields. 

 - New Delhi :  Indian Council of Agricultural Research,  1970. 
 - [vii], 710p. :  ill. ;  24 cm. 
 - Agricultural yearbook .
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 669-688. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agriculture--India.<br/>Crop yields--India.