Melanson, Philip H. <br/><br/>
The Secret Service :  the hidden history of an enigmatic agency / 
Philip Melanson and Peter F. Stevens 
 - New York :  Carroll & Graf Publishers,  2002 
 - 374 p. :  ill. ;  22 cm. 
<br/><br/>Includes bibliographical references and index 
<br/><br/><label>ISBN: </label>0786710845  RM67.50 
<br/><br/><label>Subjects--Corporate Names: </label><br/>United States. Secret Service --History