APA (7th ed.) Citation

Eastman, J. R. (1990). Papal abdication in later Medieval thought. Texts and studies in religion.

Chicago Style (17th ed.) Citation

Eastman, John R. "Papal Abdication in Later Medieval Thought." Texts and Studies in Religion 1990.

MLA (8th ed.) Citation

Eastman, John R. "Papal Abdication in Later Medieval Thought." Texts and Studies in Religion, 1990.

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