APA-viite (7. p.)
Gelfand, D. E. (1988). The aging network: Programs and services (3rd ed.). Springer.
Chicago-viite (17. p.)
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. New York: Springer, 1988.
MLA-viite (9. p.)
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. Springer, 1988.
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