APA-viite (7. p.)

Foster, W. C. (2012). Climate and culture change in North America AD 900-1600. University of Texas Press.

Chicago-viite (17. p.)

Foster, William C. Climate and Culture Change in North America AD 900-1600. Austin: University of Texas Press, 2012.

MLA-viite (9. p.)

Foster, William C. Climate and Culture Change in North America AD 900-1600. University of Texas Press, 2012.