Ludlum, Robert,  1927-2001. <br/><br/>
The Sigma protocol / 
Robert Ludlum. 
 - 1st ed. 
 - 535 p. ; 
<br/><br/> Fiction 
<br/><br/><label>ISBN: </label>0752841785 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Americans<br/>Government investigators<br/>Serial murders<br/>Older men
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Switzerland
<br/><br/><label>LC Class. No.: </label>PS3562 LUD 2001