Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Cryptography -- History -- 20th century. 3 Cryptography -- History -- 20th century -- Juvenile literature. 2 Cryptography -- History -- Juvenile literature. 3 Cryptography -- Japan. 1 Cryptography -- Juvenile drama. 1 Cryptography -- Juvenile fiction. 7 SEE: Code and cipher stories. 92 Cryptography -- Juvenile films. 1 Cryptography -- Juvenile literature. 13 Cryptography -- Mathematics. 1 Cryptography -- Terminology. 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >