TY  - BOOK
AU  - Ashok Kumar
TI  - Foodgrains production in India: impact of techno-environmental factors 
U1  - 633.1 
PY  - 1998///
CY  - New Delhi
PB  - Criterion Publications
KW  - Grain -- Ecology
KW  - Grain
N1  - Includes bibliographical references and index
ER  -