APA (7th ed.) Citation

Guilemus Baufeti & Guilelmus Arvernus. (1580). De septem sacramentis libellus.

Chicago Style (17th ed.) Citation

Guilemus Baufeti and Guilelmus Arvernus. De Septem Sacramentis Libellus. Lugdunum, 1580.

MLA (9th ed.) Citation

Guilemus Baufeti and Guilelmus Arvernus. De Septem Sacramentis Libellus. 1580.

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