00285nam a2200121 a 450000500170000008200130001710000170003010000180004724500170006526000360008230000280011863000170014620251202164254.0  a011bGIR  aGirija Kumar  aKrishan Kumar  aBibliography  aNew DelhibVani Educationc1985  aviii,297 p.b22 cm.cPB  aBibliography