APA (7th ed.) Citation

Bielefeld, B., & Felsing, O. (1925). Marienburg. O. Felsing.

Chicago Style (17th ed.) Citation

Bielefeld, Bruno, and Otto Felsing. Marienburg. Berlin: O. Felsing, 1925.

MLA (9th ed.) Citation

Bielefeld, Bruno, and Otto Felsing. Marienburg. O. Felsing, 1925.

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