00335nam a2200133Ia 45000030006000000080041000060400015000471000016000622450044000782600044001223000006001665460012001720050017001840STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aSingh, D.B.  aDiscussions Problems in General Physics  bArihant Prakashan; Meerutc2007aMeerut  a0  aEnglish20220125170112.0