000 00354pam a2200157a 44500
008 230515b1967 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGL
082 _a515.35 / RAV
100 _aRAVIDRAN R.
245 _aPARTIAL DIFFERENTIAL EQUATION
250 _aN.D.
260 _aNULL
_bWILEY
_c1967
300 _a252 PB
650 _aNULL
999 _c624423
_d624423