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00989nam a2200253 a 4500 001 3D874F2A6C0211DEA13FF332A8D7520A 003 SILO 005 20090730152454 008 020827s1991 nyub g bi 000 0 eng d 020 $a 9780760708637 020 $a 0760708630 040 $a KHPB566 $c KHP566 $d SILO 100 1 $a Kahn, David 245 1 $a Seizing the Enigma: The race to break the German U-Boat codes 1939-1943 260 $a New York, N.Y. $b Barnes & Noble $c 1991 300 $a 336 p., 23.5 cm. 520 $a American, Polish, and British cryptologists seek to break German codes during WWII, devising the first encryption machines, computers, etc. 600 17 $a Turing, Alan $2 sears 650 7 $a World War 1939-1945 $z Cryptography $2 sears 650 7 $a World War 1939-1945 $z Submarine operations $2 sears 941 $a 2 952 $l KHPB566 $d 20230126010527.0 952 $l SCPC074 $d 20140131015321.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=3D874F2A6C0211DEA13FF332A8D7520AInitiate Another SILO Locator Search