00279nam a2200109 a 450000500170000002000150001708200200003210000170005224500420006926000400011130000180015120251203091943.0  a8170334022  a305.56,bD, Pun  aPundir, J.K.  aChanging Patterns of Scheduled Castes  aNew DelhibRawat Publicationsc1997  a221p.c21 cm.