TY  - GEN
AU  - Mandal
AU  - Mandal
AU  - Sehgal
TI  - Agro-Ecological Regions of India
U1  - 630.251/SEH 
PY  - 1990///,1992
CY  - New Delhi
PB  - Oxford & IBH Publishing Co.Pvt.Ltd.
N2  - Indian Council of Agricultural Research; ICAR
ER  -