Cookridge, E. H <br/><br/>
Gehlen  spy of the century 
/ by E. H. Cookridge 
 - London  Hodder & Stoughton  1971 
 - xxii, 402 p. : ill. ; 23 cm. 
<br/><br/>Bibliography: p. 384-393. 
<br/><br/><label>ISBN: </label>0340126418 
<br/><br/><label>LCCN: </label>73-157482 //r87 
<br/><br/><label>Subjects--Personal Names: </label><br/>Gehlen, Reinhard, 1902