APA (7th ed.) Citation

Berndorff, H. R. (1929). Spionage! (25.Aufl.). Dieck.

Chicago Style (17th ed.) Citation

Berndorff, Hans Rudolf. Spionage! 25.Aufl. Stuttgart: Dieck, 1929.

MLA (9th ed.) Citation

Berndorff, Hans Rudolf. Spionage! 25.Aufl. Dieck, 1929.

Warning: These citations may not always be 100% accurate.