000 00308nam a2200121Ia 4500
020 _a0521098939
082 _a515.353 COP/P
100 _aCopson, E.T
245 0 _aPartial Differential Equations
260 _bS. Chand & Company Ltd.
_aNew Delhi
_c1989
650 _aPartial Differential Equations
942 _cBK
999 _c1492
_d1492