00546nam a22001937a 450000500170000001000150001702000260003203500140005803700130007208200110008510000160009624500670011225000120017926000320019127000670022330000240029050000220031470000160033620180215152437.0  aENG-122259  a9789387472259c595.00  aEN-105791  bDBAD/PUB  a300.71  aMangal S.K.  aPedagogy of social sciences /cby S.K. Mangal [and] Uma mangal  a2nd ed.  aDelhibPHI Learining c2018  aRimjhim House, 111, Patparganj industrial EstaebDelhie110092  axix640p.c23cm(pbk)  aIt includes index  a Uma Mangal