Cita APA (7th ed.)
Firestone, R., & Catlett, J. (2009). The ethics of interpersonal relationships. Karnac.
Cita Chicago (17th ed.)
Firestone, Robert, i Joyce Catlett. The Ethics of Interpersonal Relationships. London: Karnac, 2009.
Cita MLA (9th ed.)
Firestone, Robert, i Joyce Catlett. The Ethics of Interpersonal Relationships. Karnac, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.