Shulsky, Abram N., <br/><br/>
Silent Warfare: Understanding the World of Intelligence : 

 -  Manas Publications,  2006. 
 - 268 pages 
<br/><br/><label>ISBN: </label>9788170492917 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Intelligence service.
<br/><br/><label>Dewey Class. No.: </label>327.12  / SHU