Von Keler, Theodore M. R.  1877-1927. <br/><br/>
Rigoletto / 
Theodore M.R. von Keler. 
 - Girard, Kan. :  Haldeman-Julius Co.,  c1924. 
 - 64 p. :  music ;  13 cm. 
 - Little blue book ;  no. 495 .
<br/><br/> Publisher's advertisements on p. 58-64.  Published 5 January 1924; copies deposited at Library of Congress 23 February 1924; copyright renewed 29 December 1951. 
<br/><br/><label>LCCN: </label>ca 24000668  
<br/><br/><label>Subjects--Personal Names: </label><br/>Verdi, Giuseppe, 1813-1901.  Rigoletto. 
<br/><br/><label>LC Class. No.: </label>MT100.V48  / R61