APA (7th ed.) Citation

Bjork, R. E. (2010). The Oxford dictionary of the Middle Ages. Oxford Univ. Press. https://doi.org/10.1093/acref/9780198662624.001.0001

Chicago Style (17th ed.) Citation

Bjork, Robert E. The Oxford Dictionary of the Middle Ages. Oxford: Oxford Univ. Press, 2010. https://doi.org/10.1093/acref/9780198662624.001.0001.

MLA (9th ed.) Citation

Bjork, Robert E. The Oxford Dictionary of the Middle Ages. Oxford Univ. Press, 2010. https://doi.org/10.1093/acref/9780198662624.001.0001.

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