00374nam a2200121Ia 4500020001800000082001800018100001900036245008100055250001300136260005900149300000900208650003500217  a9780071008747  a515.353 PIN/P  aPinsky, Mark A 0aPartial Differential Equations And Boundary Value Problems With Applications  a2 ND ED.  bMcgraw Hill International Book CompanyaNew Yorkc1991  a461p  aPartial Differential Equations