APA (7th ed.) Citation

Erdmann, C. (1927). Papsturkunden in Portugal. Weidmann.

Chicago Style (17th ed.) Citation

Erdmann, Carl. Papsturkunden in Portugal. Berlin: Weidmann, 1927.

MLA (9th ed.) Citation

Erdmann, Carl. Papsturkunden in Portugal. Weidmann, 1927.

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