APA-referens (7:e uppl.)

ebrary, Inc, Tarr, G. A., & Williams, R. F. (2006). State constitutions for the twenty-first century. State University of New York Press.

Chicago-referens (17:e uppl.)

ebrary, Inc, G. Alan Tarr, och Robert F. Williams. State Constitutions for the Twenty-first Century. Albany: State University of New York Press, 2006.

MLA-referens (9:e uppl.)

ebrary, Inc, et al. State Constitutions for the Twenty-first Century. State University of New York Press, 2006.