000 00312nam a22001337a 4500
999 _c2622
_d2622
003 OSt
008 170329b xxu||||| |||| 00| 0 eng d
100 _aMangal,S K
700 _aMangal Shubhra
245 _aPedagogy of Physical Sciences
260 _bInternational Pub.
_c2016
300 _a392p
942 _2ddc
_cGB