Cita APA (7th ed.)

Hare, R. (1999). Objective prescriptions and other essays. Clarendon Pr.

Cita Chicago (17th ed.)

Hare, R.M. Objective Prescriptions and Other Essays. Oxford: Clarendon Pr, 1999.

Cita MLA (9th ed.)

Hare, R.M. Objective Prescriptions and Other Essays. Clarendon Pr, 1999.