APA (7th ed.) Citation

(1915). Alt-Katholischer Kalender. Willibrord-Buchhdlg.

Chicago Style (17th ed.) Citation

Alt-Katholischer Kalender. Bonn: Willibrord-Buchhdlg, 1915.

MLA (9th ed.) Citation

Alt-Katholischer Kalender. Willibrord-Buchhdlg, 1915.

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