Agro-ecological subregions of India for planning and development
Velayutham, M.
Agro-ecological subregions of India for planning and development M. Velayutham - Nagpur National Bureau of Soil Survey and Land Use Planning 1999
630.251 609 54 V541A
Agro-ecological subregions of India for planning and development M. Velayutham - Nagpur National Bureau of Soil Survey and Land Use Planning 1999
630.251 609 54 V541A