Dyfyniad APA
Gelfand, D. E. (1988). The aging network: Programs and services (3rd ed.). Springer.
Dyfyniad Arddull Chicago
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. New York: Springer, 1988.
Dyfyniad MLA
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. Springer, 1988.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.