APA-referens (7:e uppl.)

Parel, A., & Keith, R. C. (1992). Comparative political philosophy: Studies under the upas tree. Sage.

Chicago-referens (17:e uppl.)

Parel, Anthony, och Ronald C. Keith. Comparative Political Philosophy: Studies Under the Upas Tree. New Delhi ; Newbury Park, Calif.: Sage, 1992.

MLA-referens (8:e uppl.)

Parel, Anthony, och Ronald C. Keith. Comparative Political Philosophy: Studies Under the Upas Tree. Sage, 1992.