Brut chronicle, etc
MLA
Brut Chronicle, Etc. 0AD. https://collections.library.yale.edu/catalog/14464099.
APA, 6th edition
Brut chronicle, etc. (0 C.E.). [Manuscripts, Medieval England 15th century, Medieval and Renaissance Manuscripts in Beinecke Library]. https://collections.library.yale.edu/catalog/14464099.