Hodges, Andrew. <br/><br/>
Alan Turing :  the enigma / 
Andrew Hodges. 
 - Vintage edition. 
 - United Kigdom :   Burnett Books Ltd,  1992 . 
 - xxxiv, 736 pages, 8 unnumbered pages of plates :  illustrations ;  20 cm 
<br/><br/> Includes index 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0099116413 9780099116417 
<br/><br/><label>Subjects--Personal Names: </label><br/>Turing, Alan, 1912-1954. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mathematicians--Great Britain--Biography.