APA (7th ed.) Citation

Gratian, Bartholomaeus Brixiensis, Johannes Teutonicus, & Grüninger, J. (1490). Decretum. [Johannes Grüninger].

Chicago Style (17th ed.) Citation

Gratian, Bartholomaeus Brixiensis, Johannes Teutonicus, and Johannes Grüninger. Decretum. Strasburg: [Johannes Grüninger], 1490.

MLA (9th ed.) Citation

Gratian, et al. Decretum. [Johannes Grüninger], 1490.