North, D. C., Wallis, J. J., & Weingast, B. R. (2009). Violence and social orders: A conceptual framework for interpreting recorded human history. Cambridge University Press.
Chicago-referens (17:e uppl.)North, Douglass Cecil, John Joseph Wallis, och Barry R. Weingast. Violence and Social Orders: A Conceptual Framework for Interpreting Recorded Human History. Cambridge ; New York: Cambridge University Press, 2009.
MLA-referens (8:e uppl.)North, Douglass Cecil, et al. Violence and Social Orders: A Conceptual Framework for Interpreting Recorded Human History. Cambridge University Press, 2009.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.