000 00384pam a2200157a 44500
008 230515b1987 xxu||||| |||| 00| 0 eng d
020 _aNULL
041 _aENGLISH
082 _aN.D.
100 _a"Churchillv , Ruel"
245 _aFoures Series Of Bounbary Value Problems
250 _a0
260 _aNULL
_bTata McGraw Hill Publishing
_c1987
300 _a292
650 _aNULL
999 _c570623
_d570623