| 000 | 00869cam a2200169 4500 | ||
|---|---|---|---|
| 020 |
_a9781591148890 (hbk.): _c32.95USD |
||
| 100 | 1 | _aGRANT Robert M. | |
| 245 |
_aU-boat hunters : _bcode breakers, divers and the defeat of the u-boats, 1914-1918 / _cRobert M. Grant. |
||
| 260 |
_aAnnapolis, Maryland : _bNaval Inst Press, _c2004. |
||
| 300 | _a178 pages : ill., ports. ; 22 cm. | ||
| 504 | _aIncludes bibliographical references ( p. 162-167) and index. | ||
| 520 | _aIn this groundbreaking book, the author explains how the code breakers at the Admiralty's Room 40 were able to break into the German naval codes during the First World War. | ||
| 650 |
_aWORLD WAR, 1914-1918 _xNAVAL OPERATIONS, GERMAN |
||
| 650 |
_aMILITARY INTELLIGENCE _xGREAT BRITAIN _xHISTORY _x20TH CENTURY |
||
| 650 |
_aSUBMARINE WARFARE _xHISTORY _x20TH CENTURY |
||
| 945 |
_i44689-1001 _rY _sY |
||
| 999 |
_c29275 _d29275 |
||