MLA

Pseudo-Augustine. Pseudo-Augustine, Sermon 190 (from a Homilary) (Fragment). 0AD. https://collections.library.yale.edu/catalog/2003580.

APA, 6th edition

P.-A. (0 C.E.). Pseudo-Augustine, Sermon 190 (from a Homilary) (fragment). [Early works to 1800, Manuscripts, Medieval France 8th century, Medieval and Renaissance Manuscript Fragments in Beinecke Library, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/2003580.