Linear partial differential equations for scientists and engineers 
Tyn Myint U. 
 - 4th ed. 
 - Boston  :  Birkhäuser,  2007 
 - xxii, 778 p. :; 24 cm. 
<br/><br/> Originally published by North-Holland, 1987. 
<br/><br/><label>ISBN: </label>9780817643935 (hd.bd.) | 9788184890792 (paper cover;