Copson, E. T. (Edward Thomas), 1901-  Copson, E. T. (Edward Thomas), 1901- <br/><br/>
Partial differential equations / 
E. T. Copson. 
 - Cambridge ; New York :  Cambridge ; New York :  Cambridge University Press,  1975. 
<br/><br/> Includes index. 
<br/><br/>Bibliography: p. 277. 
<br/><br/><label>ISBN: </label> L.6.80 (  L.3.30 ( 
<br/><br/><label>LCCN: </label>74012965 //r85 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential equations, Partial.
<br/><br/><label>LC Class. No.: </label>QA377  / .C77 
<br/><br/><label>Dewey Class. No.: </label>515/.353