APA (7th ed.) Citation

Hallenbeck, J. T. (1968). The Election of Pope Hadrian I. Church history, 37(3), 261-270. doi:10.2307/3162488

Chicago Style (17th ed.) Citation

Hallenbeck, Jan T. "The Election of Pope Hadrian I." Church History 37, no. 3 (1968): 261-270, https://doi.org/10.2307/3162488.

MLA (9th ed.) Citation

Hallenbeck, Jan T. "The Election of Pope Hadrian I." Church History, vol. 37, no. 3, 1968, pp. 261-270, https://doi.org/10.2307/3162488.

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