APA (7th ed.) Citation

Holtzmann, W. (1926). Papst Alexander III. und Ungarn.

Chicago Style (17th ed.) Citation

Holtzmann, Walther. Papst Alexander III. Und Ungarn. 1926.

MLA (9th ed.) Citation

Holtzmann, Walther. Papst Alexander III. Und Ungarn. 1926.

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