APA (7th ed.) Citation

Pierre , l. V., & Fearns, J. (1968). Petri Venerabilis Contra Petrobrusianos Hereticos. Typographi Brepols Editores Pontificii.

Chicago Style (17th ed.) Citation

Pierre , le Vénérable, and James Fearns. Petri Venerabilis Contra Petrobrusianos Hereticos. Turnholti: Typographi Brepols Editores Pontificii, 1968.

MLA (9th ed.) Citation

Pierre , le Vénérable, and James Fearns. Petri Venerabilis Contra Petrobrusianos Hereticos. Typographi Brepols Editores Pontificii, 1968.