000 00229 a2200097 4500
001 6352
100 _aGreenspan, D
245 _aIntroduction to partial differential equations
260 _a
_bMcGraw hill
_c
090 _c5227
_d5227
942 _aNUST-CAE
_cM
_c31631
999 _c241425
_d241425