APA (7th ed.) Citation

Fryde, E. B., & Powicke, F. M. (1986). Handbook of British chronology (3rd ed.). Royal Historical Society.

Chicago Style (17th ed.) Citation

Fryde, E. B., and F. M. Powicke. Handbook of British Chronology. 3rd ed. London: Royal Historical Society, 1986.

MLA (9th ed.) Citation

Fryde, E. B., and F. M. Powicke. Handbook of British Chronology. 3rd ed. Royal Historical Society, 1986.