APA (7th ed.) Citation

Petrus Helias ca. 12. Jh. Summa super Priscianum.

Chicago Style (17th ed.) Citation

Petrus Helias ca. 12. Jh. Summa Super Priscianum. Toronto.

MLA (9th ed.) Citation

Petrus Helias ca. 12. Jh. Summa Super Priscianum.

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