APA (7th ed.) Citation

Harper, K. (2021). Plagues upon the earth: Disease and the course of human history. Princeton University Press.

Chicago Style (17th ed.) Citation

Harper, Kyle. Plagues upon the Earth: Disease and the Course of Human History. Princeton: Princeton University Press, 2021.

MLA (8th ed.) Citation

Harper, Kyle. Plagues upon the Earth: Disease and the Course of Human History. Princeton University Press, 2021.

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