APA (7th ed.) Citation

Thatcher, O. J., & McNeal, E. H. (1971). A source book for mediaeval history: Selected documents illustrating the history of Europe in the Middle Age. AMS Press.

Chicago Style (17th ed.) Citation

Thatcher, Oliver J., and Edgar Holmes McNeal. A Source Book for Mediaeval History: Selected Documents Illustrating the History of Europe in the Middle Age. New York: AMS Press, 1971.

MLA (9th ed.) Citation

Thatcher, Oliver J., and Edgar Holmes McNeal. A Source Book for Mediaeval History: Selected Documents Illustrating the History of Europe in the Middle Age. AMS Press, 1971.