000 00313nam a22001337a 4500
999 _c2990
_d2990
008 170109b xxu||||| |||| 00| 0 eng d
020 _a8121900166
082 _a530
100 _aSingh, Harnam
245 _aB.Sc. Practical physics
260 _aNew Delhi
_bS. Chand
300 _axvi, 496 p. :
942 _2ddc
_cBK