00378nam a2200145Ia 4500003000500000008004100005020001800046040001900064082000700083100001800090245005900108260004500167300000800212546001200220STCL181203s9999    xx            000 0 und d  a9788173195198  aSTCLbENcSTCL  222  aAmaranath, T. 3aAn Elementary Course in Partial Differential Equations  bNarosa Publishing HouseaNew Delhic2017  a152  aEnglish