TY  - BOOK
AU  - K.P.R. Vittal
AU  -  G.R. Sankar Maruthi H.P. Singh  J.S. Samra
TI  - Sustainability of practices of dryland agriculture : Methodology and assessment
U1  - 631.586 
PY  - 2002///
CY  - Hyderbad
PB  - Central Research Institute for dryland Agriculture
ER  -