00574nam a22001697a 4500 20220329162359.0 220329b |||||||| |||| 00| 0 eng d 0-439-62717-6 DDC English 652.8 M649 1998 Miller, Marvin Codemaster Book 1 : how to write and decode top-secret message / Marvin Miller. New York : Scholastic Inc., c1998. 69 p. : ill. ; 19 cm. Ciphere -- Juvenile literature. Cryptography -- Juvenile literature. 28590 ddc CIR 12886 12886 0 0 0 0 NFIC HS-IMC HS-IMC CIR 0000-00-00 Purchased 0 652.8 M649 1998 24053 2022-03-29 00:00:00 1 0000-00-00 CIR 0 0 0 0 NFIC HS-IMC HS-IMC CIR 0000-00-00 Purchased 0 652.8 M649 1998 24052 2022-11-10 00:00:00 2 0000-00-00 CIR