| Cryptography -- History. Matches 4 items |
| Cryptography -- History -- 20th century. Matches 2 items |
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Cryptography -- Juvenile fiction. SEE: Code and cipher stories Matches 23 items
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Cryptography -- Juvenile fiction -- Juvenile fiction. SEE: Code and cipher stories -- Juvenile fiction Matches 1 item
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| Cryptography -- Juvenile literature. Matches 2 items |
| Cryptography -- United States -- History -- 20th century -- Juvenile literature. Matches 1 item |
| Cryptologic fiction. Matches 2 items |
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Cryptological fiction. SEE: Cryptologic fiction Matches 2 items
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Cryptology. SEE: Cryptography Matches 5 items
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Cryptology -- History. SEE: Cryptography -- History Matches 3 items
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