00305nam a22001217a 450000500170000000800410001704000070005804100120006508200180007710000240009524500380011970000260015720240306131559.0240306b           ||||| |||| 00| 0 eng d  cAL  aEnglish  223a530bRAOT  aM A Ramachandra Rao  aTextbook of Preuniversity Physics  aRAO (Ramachandra M A)