Lanczos, Cornelius,  1893-1974 <br/><br/>
Linear differential operators / 
by Cornelius Lanczos. 
 - London :  Van Nostrand,  c1961. 
 - xv, 564 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliography and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Calculus, Operational.<br/>Differential equations, Linear.
<br/><br/><label>Dewey Class. No.: </label>515.354  / LAL 1961