MLA

Ordinary of Arms : Thomas Jenyns Book. 0AD. https://collections.library.yale.edu/catalog/16161080.

APA, 6th edition

Ordinary of arms : Thomas Jenyns book. (0 C.E.). [Dictionaries, Early works to 1800, Coats of arms England 16th century.aat, Manuscripts, Medieval England 16th century, Manuscripts, Renaissance England 16th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/16161080.