Cita APA (7th ed.)
ebrary, Inc, & Johnson, T. F. (1999). Handbook on ethical issues in aging. Greenwood Press.
Cita Chicago (17th ed.)
ebrary, Inc, i Tanya F. Johnson. Handbook on Ethical Issues in Aging. Westport, Conn.: Greenwood Press, 1999.
Cita MLA (9th ed.)
ebrary, Inc, i Tanya F. Johnson. Handbook on Ethical Issues in Aging. Greenwood Press, 1999.
Atenció: Aquestes cites poden no estar 100% correctes.