Donington, Robert. <br/><br/>
Wagner's `ring' and its symbols :  the music and the myth. 

 - [3rd ed.]. 
 - London :  Faber & Faber,  [1974] 
<br/><br/>Bibliography: p. 316-328. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Wagner, Richard, 1813-1883. Ring des Nibelungen. Wagner, Richard, 1813-1883. Ring des Nibelungen.  Wagner, Richard, 1813-1883. Ring des Nibelungen.