Lorch, Edgar R.  1907- <br/><br/>
Spectral theory. 

 - New York:  Oxford University Press,  1962. 
 - 158 p.:  22 cm. 
 - University texts in the mathematical sciences .
<br/><br/>Includes bibliography. 
<br/><br/><label>LCCN: </label>62009824 /L/r84 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Spectral theory (Mathematics).
<br/><br/><label>Dewey Class. No.: </label>515.722   / L865s