APA (7th ed.) Citation

Kopp, G. (1965). Mein Freund Johann Spies.

Chicago Style (17th ed.) Citation

Kopp, Georg. Mein Freund Johann Spies. 1965.

MLA (9th ed.) Citation

Kopp, Georg. Mein Freund Johann Spies. 1965.

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