MLA

Petrus, von Rosenheim, approximately 1380-1433, author. Rationarium euangelistarum omnia in se euangelia prosa, versu, ymaginibusq[ue] q[ua] mirifice complectens. 2. [1505]. https://collections.library.yale.edu/catalog/11020655.

APA, 6th edition

Petrus, von Rosenheim, approximately 1380-1433, author. (["2"])([1505])[Rationarium euangelistarum omnia in se euangelia prosa, versu, ymaginibusq[ue] q[ua] mirifice complectens]. https://collections.library.yale.edu/catalog/11020655.