APA-viite (7. p.)

Ross, R. G. (1970). Obligation: A social theory. University of Michigan Press.

Chicago-viite (17. p.)

Ross, Ralph Gilbert. Obligation: A Social Theory. Ann Arbor: University of Michigan Press, 1970.

MLA-viite (9. p.)

Ross, Ralph Gilbert. Obligation: A Social Theory. University of Michigan Press, 1970.