00450nam a22001577a 4500003000400000082001800004100001300022245010300035260006300138300000900201546001200210700001900222700001800241700001800259700001500277OSt  aICAR/NBSS&LUP  aPal, D K  aClimate change and polygenesis in vertisols of the Purna valley (Maharashtra) and their management  aNagpurbNational Bureau of Soil Survey & Land Use Planning  a35p.  aEnglish  aDeshpande, S B  aVelayutham, M  aSrivastava, P  aDurge, S L