TY - GEN AU - Ian Sneddon TI - Elements of Partial Differential Equation / U1 - 515.35,SNE PY - 1957/// CY - New York PB - McGraw Hill KW - Ian N.Sneddon KW - Differential Equation N1 - Ordinary Differential Equations In More Than Two Variables (Page-1), Partial Differential Equations Of The First Order (Page-44), Partial Differential Equations Of The Second Order (Page-88), Laplace Equation (Page-141), The Wave Equation (Page-209) ER -