APA (7th ed.) Citation

Petrus Venerabilis, 1., & Fearns, J. (1968). Petri Venerabilis Contra Petrobrusianos hereticos. Typographi Brepols.

Chicago Style (17th ed.) Citation

Petrus Venerabilis, 1092?-1156, and James Fearns. Petri Venerabilis Contra Petrobrusianos Hereticos. Turnholti: Typographi Brepols, 1968.

MLA (9th ed.) Citation

Petrus Venerabilis, 1092?-1156, and James Fearns. Petri Venerabilis Contra Petrobrusianos Hereticos. Typographi Brepols, 1968.

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