APA (7th ed.) Citation

Held, K. (1957). Der "Regensburger Pfennig".

Chicago Style (17th ed.) Citation

Held, Karl. Der "Regensburger Pfennig". 1957.

MLA (9th ed.) Citation

Held, Karl. Der "Regensburger Pfennig". 1957.

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