TY - BOOK AU - Sneddon,Ian Naismith TI - Elements of partial differential equations SN - 0486452972 (pbk.) AV - QA374 .S6 2006 U1 - 515.353 23 PY - 2006/// CY - Mineola, N.Y. PB - Dover Publications KW - Differential equations, Partial KW - Math analysis N1 - Originally published: New York : McGraw-Hill, 1957; Includes index ER -