Hare, R. (1999). Objective prescriptions and other essays. Clarendon Pr..
Chicago Style (17th ed.) ZitazioaHare, R.M. Objective Prescriptions and Other Essays. Oxford: Clarendon Pr., 1999.
MLA (9th ed.) ZitazioaHare, R.M. Objective Prescriptions and Other Essays. Clarendon Pr., 1999.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.