MLA

Church, Catholic. Missale Romanum. Johannes Emericus de Spira for Lucantonio Giunta, 0AD. https://collections.library.yale.edu/catalog/2011083.

APA, 6th edition

Church, C. (0 C.E.). Missale Romanum [Incunabula, Woodcuts, Fragments (object portions), Incunabula in Yale Library]. Johannes Emericus de Spira for Lucantonio Giunta. https://collections.library.yale.edu/catalog/2011083.