Jak P.Mallmann Showell - Enigma U-Boats: Breaking the Code
Ian Allan Publishing | 2000 | ISBN: 0711027641 | English | 198 pages | PDF | 165 MB
Ian Allan Publishing | 2000 | ISBN: 0711027641 | English | 198 pages | PDF | 165 MB
The story of Enigma and the breaking of the seemingly impenetrable German codes during World War 2.