Gerhard F. Strasser

Identifiers

• Open LibraryOL975805A

Top Subjects

• Cryptography -- History -- 16th century. (1)
• Cryptography -- History -- 17th century. (1)
• Language, Universal -- History -- 16th century. (1)
• Language, Universal -- History -- 17th century. (1)
• German language (1)
• Textbooks for foreign speakers (1)
• 1950- (1)