APA (7th ed.) Citation

Institutum Marianum. Regensburg & Bäumer, R. (1991). Marienlexikon. Marienlexikon.

Chicago Style (17th ed.) Citation

Institutum Marianum. Regensburg and Remigius Bäumer. "Marienlexikon." Marienlexikon 1991.

MLA (9th ed.) Citation

Institutum Marianum. Regensburg and Remigius Bäumer. "Marienlexikon." Marienlexikon, 1991.

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