APA (7th ed.) Citation

Albertus Ferrariensis & Plannck, S. (1491). [Incipit Tractatus de horis canonicis. Stephanus Plannck.

Chicago Style (17th ed.) Citation

Albertus Ferrariensis and Stephan Plannck. [Incipit Tractatus De Horis Canonicis. [Romae: Stephanus Plannck, 1491.

MLA (9th ed.) Citation

Albertus Ferrariensis and Stephan Plannck. [Incipit Tractatus De Horis Canonicis. Stephanus Plannck, 1491.