APA (7th ed.) Citation

Hildegard Bingen, Ä. (1994). Ordo Virtutum. Gnadenthal Gymnasium.

Chicago Style (17th ed.) Citation

Hildegard Bingen, Äbtissin. Ordo Virtutum. Ingolstadt: Gnadenthal Gymnasium, 1994.

MLA (9th ed.) Citation

Hildegard Bingen, Äbtissin. Ordo Virtutum. Gnadenthal Gymnasium, 1994.

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