APA (7th ed.) Citation

Klingaman, W. K., & Klingaman, N. P. (2013). The year without summer: 1816 and the volcano that darkened the world and changed history (First edition.). St. Martin's Press.

Chicago Style (17th ed.) Citation

Klingaman, William K., and Nicholas P. Klingaman. The Year Without Summer: 1816 and the Volcano That Darkened the World and Changed History. First edition. New York: St. Martin's Press, 2013.

MLA (9th ed.) Citation

Klingaman, William K., and Nicholas P. Klingaman. The Year Without Summer: 1816 and the Volcano That Darkened the World and Changed History. First edition. St. Martin's Press, 2013.