00282nam a2200109 a 450000500170000002000150001708200150003210000230004724500430007026000360011330000230014920251203110544.0  a8174451560  a306.3bKOL  aKolay,Swapan Kumar  aEcology economy and tribal development  aDelhibMohit Publicationsc2001  avii,213p.c20cm HB