00421nam a2200133Ia 4500008004100000041000800041082001500049100003000064245002400094260003400118365000700152999001900159952010900178230303s9999    xx            000 0 und d  aeng  a530.4, GAU  aGAUR (R.K.)/ GUPTA (S.L.)  aEngineering Physics  aNEW DELHIbDhanpat Rai & Sons  cRS  c191755d191755  00104070aECDbECDd2023-03-07g240.00l0o530.4, GAUpECD-BB4146r2023-03-07 00:00:00w2023-03-07yBK