Blake, Barry J. <br/><br/>
Secret language / 
Barry J. Blake. 
 - Oxford :  Oxford University Press,  2010. 
 - xi, 328 p. :  ill. ;  21 cm. 
<br/><br/> Formerly CIP. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780199579280 
<br/><br/><label>Nat. Bib. No.: </label> bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ciphers.<br/>Cryptography.<br/>Historical linguistics.
<br/><br/><label>Dewey Class. No.: </label>417.7 B B S