Jeffreys, Harold <br/><br/>
Operational methods  in mathematical physics 

 - 2nd ed. 
 - 1964  Stechert-Hafner Service  New York 
 - vi,117p. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematics<br/>Operational methods
<br/><br/><label>Dewey Class. No.: </label>519  / JEF