APA (7th ed.) Zitazioa
Gelfand, D. E. (1988). The aging network: Programs and services (3rd ed.). Springer.
Chicago Style (17th ed.) Zitazioa
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. New York: Springer, 1988.
MLA (9th ed.) Zitazioa
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. Springer, 1988.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.