00395nam a22001457i 4500001001000000005001700010008004100027082001800068100002200086245004800108260004600156300001700202650001200219020001800231SXC01457920260819093553.0260101s1984    ii            000 0 eng d  a530 NAR-F222  aNarayana Rao, B V10aFirst year BSc physics /cNarayana Rao, B V  abWiley Eastern Limited, New Delhi,c1984  ap. ;c22 cm. 0aPhysics  a9780471639022