MLA

Hugh, of Fouilloy, d. 1172 or 3. Moralitates de avibus, etc. [between 1190 and 1200]. https://collections.library.yale.edu/catalog/9998739.

APA, 6th edition

Hugh, of Fouilloy, d. 1172 or 3. ([between 1190 and 1200])[Moralitates de avibus, etc]. https://collections.library.yale.edu/catalog/9998739.