Elements Of Partial Differential Equations By Ian Sneddon.pdf [repack] -

Yes, legally questionable copies exist on various academic file-sharing sites (Library Genesis, Sci-Hub, etc.). However, these are pirated copies .

Sneddon is great for , but if the "delta-epsilon" style proofs get too heavy, you might want to supplement it with: Yes, legally questionable copies exist on various academic

Do not hunt for a shady PDF. Purchase the physical Dover edition. Mark it up with pencil. Solve every problem. In six months, you will understand why Sneddon is a legend—and you will have earned the right to call yourself a student of partial differential equations. Yes, legally questionable copies exist on various academic