Duff, G. F. D.  1926- <br/><br/>
Differential equations of applied mathematics / 
by G.F.D. Duff and D. Naylor 
 - New York :  John Wiley & Sons,  1966 
 - xi, 423 p. :  ill. ;  24 cm. 
<br/><br/>Bibliography : p. 417-418. 
<br/><br/><label>LCCN: </label>65-026844 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Partial<br/>Mathematical physics