MLA

Cecchi, artist. Vera Effigies Venblis Servi Dei Patris Antonii Margil : Ordinis Min. Observantium : in Indiis Occidentalibus Missionarii Aptici : Fr. Jo. Chris. Post. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/2015992.

APA, 6th edition

Cecchi, artist. (0 C.E.). Vera effigies venblis servi dei patris Antonii Margil : ordinis min. observantium : in Indiis Occidentalibus missionarii aptici : Fr. Jo. Chris. post [Portraits, Pictorial works, Intaglio prints]. publisher not identified. https://collections.library.yale.edu/catalog/2015992.