Kosberg, J. I. (1994). International handbook on services for the elderly. Greenwood Press.
Cita Chicago (17th ed.)Kosberg, Jordan I. International Handbook on Services for the Elderly. Westport, Conn: Greenwood Press, 1994.
Cita MLA (9th ed.)Kosberg, Jordan I. International Handbook on Services for the Elderly. Greenwood Press, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.