TY  - BOOK
AU  - Reddy, M. Devender ...[et.al.]
TI  - Cropping systems : research done under AICRP on cropping system (1968-2003)
PY  - 2005///
CY  - Hyderabad
PB  - Acharya N.G. Ranga Agricultural University Rajendrangar
ER  -