Cite

[Another, presumably discarded, copy of fol. 5]

MLA

Gregory I, Pope, ca. 540-604. [Another, presumably discarded, copy of fol. 5]. ca. 1474-76]. https://collections.library.yale.edu/catalog/15825691.

APA, 6th edition

Gregory I, Pope, ca. 540-604. (ca. 1474-76])[[Another, presumably discarded, copy of fol. 5]]. https://collections.library.yale.edu/catalog/15825691.