Asprey, Robert B. <br/><br/>
Frederick the great The magnificent enigma / 
Robert B. Asprey 
 - New York :  History Book Club,  1986       
 - xxv, 715 p. 
<br/><br/><label>ISBN: </label>0965067937 
<br/><br/><label>LC Class. No.: </label>B DD 404 A843f 1999