APA (7th ed.) Citation

Bury, J. B., Gwatkin, H. M., & Whitney, J. P. (1924). The Cambridge medieval history (2nd ed.). University Press.

Chicago Style (17th ed.) Citation

Bury, J. B., Henry Melville Gwatkin, and James Pounder Whitney. The Cambridge Medieval History. 2nd ed. Cambridge: University Press, 1924.

MLA (9th ed.) Citation

Bury, J. B., et al. The Cambridge Medieval History. 2nd ed. University Press, 1924.