00410nam a22001457i 4500001001000000005001700010008004100027082002300068100002200091245005500113250001000168260004700178300001700225650002200242SXC01954220260819093651.0260101s1991    ii            000 0 eng d  a530.028 GOS-T2222  aGosh, Samir Kumar10aTextbook of practical physics /cGosh, Samir Kumar  a2 ed.  abNew Central Book Agency, Calcutta,c1991  ap. ;c22 cm. 0aPractical physics