MLA

Thomas, Aquinas, Saint, 1225?-1274, author. [P]ostulat a me uestra dileccio ut de articulis fidei et ecclesie sacramentis aliqua vobis compe[n]diose p[ro] memoriali transcriberem.... [1460?]. https://collections.library.yale.edu/catalog/33387252.

APA, 6th edition

Thomas, Aquinas, Saint, 1225?-1274, author. ([1460?])[[P]ostulat a me uestra dileccio ut de articulis fidei et ecclesie sacramentis aliqua vobis compe[n]diose p[ro] memoriali transcriberem...]. https://collections.library.yale.edu/catalog/33387252.