Title: British Intelligence in the Second World War

Author: Hinsley, F H

Call No: 355.3432 HIN

Publisher: Her Majestys Stationery Office , London, United Kingdom , 1993 Detail

Title: Walls have ears : the greatest intelligence operation of world war II

Author: Fry, Helen

Call No: 940.548641 FRY

Publisher: Yale University Press , New Haven and London, United Kingdom , 2019 Detail