Cita APA (7a ed.)

Sprigge, T. L. (1987). The rational foundations of ethics. Routledge & Kegan Paul.

Cita Chicago Style (17a ed.)

Sprigge, Timothy L.S. The Rational Foundations of Ethics. London [etc.]: Routledge & Kegan Paul, 1987.

Cita MLA (9a ed.)

Sprigge, Timothy L.S. The Rational Foundations of Ethics. Routledge & Kegan Paul, 1987.