00321nam a2200133Ia 45000030006000000080041000060400015000471000018000622450038000802500011001182600029001295460012001580050017001700STCL150530s9999    xx            000 0 und d  aSTCLcSTCL  aMenon, R.V.G.  aHistory of science and technology  aFourth  bBhagya, Trivandrumc1991  aEnglish20220125170118.0