Cita APA (7a ed.)

Sociedad Filosófica Ibero Americana & Villanueva, E. (1993). Naturalism and normativity. Ridgeview.

Cita Chicago Style (17a ed.)

Sociedad Filosófica Ibero Americana y Enrique Villanueva. Naturalism and Normativity. Atascadero, California: Ridgeview, 1993.

Cita MLA (9a ed.)

Sociedad Filosófica Ibero Americana y Enrique Villanueva. Naturalism and Normativity. Ridgeview, 1993.