000 00280nam a2200097 4500
245 _aIntroduction to partial differential equations
_cDonald Greenspan
100 _aGreenspan, Donald
260 _aBombay
_bTata McGraw-Hill
_cc1961
300 _aviii,195p. ; 23cm.
082 _a515.353
_bGRE
999 _c4214
_d4214