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Espionage, American -- Germany -- Berlin -- History -- 20th century.

Espionage, American -- Germany -- Drama.

Espionage, American -- Germany -- Fiction.

Espionage, American -- Germany -- History -- 20th century.

Espionage, American -- Handbooks, manuals, etc.

8. Espionage, American -- History. 5

Espionage, American -- History -- 20th century.

Espionage, American -- History -- 20th century -- Fiction.

Espionage, American -- History -- 20th century -- Juvenile literature.