MLA

[Heraldic Device with Dragon Supporters and Motto "Domine Dirige Nos"] [Graphic]. publisher not identified, 0AD. https://collections.library.yale.edu/catalog/16830971.

APA, 6th edition

[Heraldic device with dragon supporters and motto "Domine dirige nos"] [graphic]. (0 C.E.). [Armorial bookplates, Bookplates, Engravings England 1757]. publisher not identified. https://collections.library.yale.edu/catalog/16830971.