APA (7th ed.) Zitazioa
Marshall, M. (1990). Social work with old people (2nd ed.). Macmillan.
Chicago Style (17th ed.) Zitazioa
Marshall, Mary. Social Work with Old People. 2nd ed. London: Macmillan, 1990.
MLA (9th ed.) Zitazioa
Marshall, Mary. Social Work with Old People. 2nd ed. Macmillan, 1990.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.