TY  - BOOK
AU  - Singh, Sita Ram
TI  - Agro agro diversity and cropping pattern : issues and challenges
SN  - 9788131306512
U1  - 630 SIN 
PY  - 2009///
CY  - New Delhi
PB  - A. P. H. Pub. Corp
KW  - Agricultural diversification - India
KW  - Cropping systems -- India
N1  - Includes bibliographical references
ER  -