Kosberg, J. I. (1994). International handbook on services for the elderly. Greenwood Press.
Chicago Style (17. basım) AtıfKosberg, Jordan I. International Handbook on Services for the Elderly. Westport, Conn: Greenwood Press, 1994.
MLA (9th ed.) AtıfKosberg, Jordan I. International Handbook on Services for the Elderly. Greenwood Press, 1994.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..