MLA

Nicolaus, de Lovanio, -1522, author. Minorica elucidatiua racionabilis separationis fratrum minoru[m] de obseruantia ab aliis fratribus eiusdem ordinis. [approximately 1497]. https://collections.library.yale.edu/catalog/11403212.

APA, 6th edition

Nicolaus, de Lovanio, -1522, author. ([approximately 1497])[Minorica elucidatiua racionabilis separationis fratrum minoru[m] de obseruantia ab aliis fratribus eiusdem ordinis]. https://collections.library.yale.edu/catalog/11403212.