00312nam a2200109 a 450000500170000000800410001704100080005810000180006624500730008426400340015730000110019120260717072129.0260701s1975    ii            000 0 eng d  aeng1 aSaxena, H. C.10aExamples in knite differeces and numerical analysis /cSaxena, H. C. 1aNew Delhi :bS. Chand,c1975.  a322 p.