000 00354pam a2200133a 44500
082 _a517.38
_bD87p
100 _aDuff, George Francis Denton
245 1 _aPARTIAL DIFFERENTIAL EQUATIONS
260 _aToronto
_bUniversity Of Toronto Press
_c1962
300 _a248
440 _aMathematical Expositions, No. 9
_v
964 _gCIRC
997 _a72463 C
999 _c428631
_d428631