APA (7th ed.) Citation

Galfredus Monumetensis. (1929). The Historia regum Britanniae of Geoffrey of Monmouth. Longmans, Green.

Chicago Style (17th ed.) Citation

Galfredus Monumetensis. The Historia Regum Britanniae of Geoffrey of Monmouth. London [u.a.]: Longmans, Green, 1929.

MLA (9th ed.) Citation

Galfredus Monumetensis. The Historia Regum Britanniae of Geoffrey of Monmouth. Longmans, Green, 1929.

Warning: These citations may not always be 100% accurate.