Historia regum Britanniae; with French moralistic poetry, etc
MLA
Geoffrey, of Monmouth, Bishop of St. Asaph, 1100?-1154. Historia regum Britanniae; with French moralistic poetry, etc. [between 1175 and 1250]. https://collections.library.yale.edu/catalog/9998995.
APA, 6th edition
Geoffrey, of Monmouth, Bishop of St. Asaph, 1100?-1154. ([between 1175 and 1250])[Historia regum Britanniae; with French moralistic poetry, etc]. https://collections.library.yale.edu/catalog/9998995.