John, Fritz <br/><br/>
Partical differential equations/3rd ed. 

 - 3rd ed. 
 - New York  Springer-Verlag  1978 
 - Applied mathematical science  1 .
<br/><br/><label>Subjects--Index Terms: </label>Laplace eqution  Hyperbolic equations  Parabolic equations 
<br/><br/><label>Dewey Class. No.: </label>515.353