APA (7th ed.) Citation

Regnier, E. Incipit casus l[ongi] super sextū decretalium. s.n..

Chicago Style (17th ed.) Citation

Regnier, Elias. Incipit Casus L[ongi] Super Sextū Decretalium. [S.l.: s.n..

MLA (8th ed.) Citation

Regnier, Elias. Incipit Casus L[ongi] Super Sextū Decretalium. s.n..