Leys, W. A. R. (1959). Philosophy and the public interest. Illinois.
Cita Chicago (17th ed.)Leys, Wayne Albert Risser. Philosophy and the Public Interest. Committee to Advance Original Work in Philosophy: Illinois, 1959.
Cita MLA (9th ed.)Leys, Wayne Albert Risser. Philosophy and the Public Interest. Illinois, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.