APA (7e ed.) Bronvermelding
Gelfand, D. E. (1988). The aging network: Programs and services (3rd ed.). Springer.
Chicago (17e ed.) Bronvermelding
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. New York: Springer, 1988.
MLA (9e ed.) Bronvermelding
Gelfand, Donald E. The Aging Network: Programs and Services. 3rd ed. Springer, 1988.
Let op: Deze citaties zijn niet altijd 100% accuraat.