Quinn, W. (1994). Morality and action. Cambridge Univ. Pr.
Chicago Style (17th ed.) ZitazioaQuinn, Warren. Morality and Action. New York: Cambridge Univ. Pr, 1994.
MLA (9th ed.) ZitazioaQuinn, Warren. Morality and Action. Cambridge Univ. Pr, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.