Cita APA (7th ed.)
Murphy, J. (1978). Never too old to teach. AED.
Cita Chicago (17th ed.)
Murphy, Judith. Never Too Old to Teach. New York: AED, 1978.
Cita MLA (9th ed.)
Murphy, Judith. Never Too Old to Teach. AED, 1978.
Atenció: Aquestes cites poden no estar 100% correctes.