00475nam a22001577a 450000500170000001000170001702000270003403500170006103700080007808200080008610000190009424500750011326000370018827000520022530000400027720101204144543.0  aB-419946-981  c640.00 a9788174825278  aB-419946-981  bUBH  a796  aTomar, Surekha  aUpkar's CSIR-UGC NET/JRF/SET physical sciences /cby Dr. Surekha Tomar  aNew DelhibUpkar Prakashanc201?  a4845, Ansari Road, DaryaganjbNew Delhie110002  aviii, 1064p. ;billu.c27 cm. (Pbk)