Crop productivity and sustainability :  shaping the future : proceedings of the 2nd International Crop Science Congress / 
organized jointly by the National Academy of Agricultural Sciences of India and the Indian Council of Agricultural Research ; editors : V. L. Chopra, R. B. Singh, Anupam Varma 
 - Enfield, New Hampshire :  Science Publishers,  1998 
 - xxviii, 1111 p. :  ill. ;  25 cm. 
<br/><br/><label>ISBN: </label>1578080045  RM783.90 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Agricultural productivity--Congresses<br/>Crop yields--Congresses<br/>Crop science--Congresses