MLA

Werlerus, Vitus, d. after 1522. Ego Vitus Vuerlerus ... lectoribus candidis hoc primo Ianuarij die, animorũ ac corporũ sanitatẽ pro noui anni munere exopto .... 1514]. https://collections.library.yale.edu/catalog/16598952.

APA, 6th edition

Werlerus, Vitus, d. after 1522. (1514])[Ego Vitus Vuerlerus ... lectoribus candidis hoc primo Ianuarij die, animorũ ac corporũ sanitatẽ pro noui anni munere exopto ...]. https://collections.library.yale.edu/catalog/16598952.