Wolfson, Victor. <br/><br/>
The Mayerling murder. 

 - Englewood Cliffs, N.J.  Prentice-Hall  [1969] 
 - vii, 198 p.  illus., ports.  22 cm. 
<br/><br/>Bibliography: p. 190-194. 
<br/><br/><label>ISBN: </label>0135666465 
<br/><br/><label>LCCN: </label>79081970  
<br/><br/><label>Subjects--Personal Names: </label><br/>Rudolf Crown Prince of Austria  1858-1889. <br/>Vetsera, Marie Alexandrine Baronesse  1871-1889. 
<br/><br/><label>LC Class. No.: </label>DB89.R8  / W6 
<br/><br/><label>Dewey Class. No.: </label>943.6/04/0924