00310nam a2200121Ia 4500008004100000041001200041082001600053100001500069245004900084260002800133300000800161650001900169221030s9999    xx            000 0 und d  aEnglish  a105.23bBal  aN. P. Bali 0aGolden Differential Equationscby N. P. Bali  bLaxmi PubaNew Delhic0  a491  aBE Mathematics