APA (7th ed.) Citation

Dales, R. C. (1973). The scientific achievement of the middle ages / Richard C. Dales. University of Pennsylvania Press.

Chicago Style (17th ed.) Citation

Dales, Richard C. The Scientific Achievement of the Middle Ages / Richard C. Dales. Philadelphia: University of Pennsylvania Press, 1973.

MLA (9th ed.) Citation

Dales, Richard C. The Scientific Achievement of the Middle Ages / Richard C. Dales. University of Pennsylvania Press, 1973.

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