MLA

of Saint Andrew of Gouffern, Abbey. Grant to Fromond, Son of David, of a House in "Moreriis," Accompanying His Admission into the Confraternity of Saint Andrew. 0AD. https://collections.library.yale.edu/catalog/10543766.

APA, 6th edition

of Saint Andrew of Gouffern, A. (0 C.E.). Grant to Fromond, son of David, of a house in "Moreriis," accompanying his admission into the confraternity of Saint Andrew [Charters France 12th century, Manuscripts, Medieval France 12th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/10543766.