000 00604nam a2200193Ia 4500
919 _a091470
082 _a515.353
_bN57 R(T)
100 _aSneddon, IAN N.
245 _aElements of partial differential equations
_b
_cby IAN N. Sneddon.
260 _bMcGraw Hill
_c1957
999 _c87683
_d87683