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00855nam a2200241?a 4500 001 626F9A782AE311DEB18A2006A8D7520A 005 200904161904.0 008 851001s1977 cau 00010 eng d 020 $a 9780894120190 020 $a 0894120190 040 $a NcRS $c NcRS $d SILO $d IaU $d SILO 100 1 $a Friedman, William Frederick, $d 1891- 245 1 $a Solving German codes in World War I / $c William F. Friedman. 260 $a Laguna Hills, Calif. : $b Aegean Park Press, $c c1977. 300 $a ix, 152 p. ; $c 28 cm. 440 0 $a Cryptographic series ; $v 11 650 0 $a Cryptography. 650 0 $a World War, 1914-1918 $x Communications. 650 0 $a World War, 1914-1918 $x Cryptography. 939 $a 2045497 941 $a 1 952 $l OVUX522 $d 20180102032114.0 956 $a http://locator.silo.lib.ia.us/search.cgi?index_0=id&term_0=626F9A782AE311DEB18A2006A8D7520AInitiate Another SILO Locator Search