01030cam a22003735a 4500 16939797 OSt 20140310182131.0 110830s1990 nyu 000 0 eng d 2011489154 0440841542 9780440841548 (OCoLC)ocm22169812 BOA BOA CQF DLC lccopycat Z 103.3 .W776 1990 HS 794 W73 1990 Winokur, Eric. 14716 Secret codes / Eric Winokur. New York : Trumpet Club, c1990. 58 p. : ill. ; 19 cm. Explorer books Cryptography. 14717 Ciphers. 14718 Cryptography. 14719 Ciphers. 14720 Copyright Paperback Collection (Library of Congress) DLC 705 0 ibc copycat 2 ncip 20 y-genrareb lcc HS 9696 9696 0 0 lcc 0 LUX LUX HS 2013-08-28 0 Z 103.3 .W776 1990 11559 2013-08-28 00:00:00 1 2013-08-28 BK