APA (7th ed.) Zitazioa
Beisgen, B. A., & Kraitchman, M. C. (2003). Senior centers: Opportunities for successful aging. Springer Pub. Co..
Chicago Style (17th ed.) Zitazioa
Beisgen, Beverly Ann, eta Marilyn Crouch Kraitchman. Senior Centers: Opportunities for Successful Aging. New York: Springer Pub. Co., 2003.
MLA (9th ed.) Zitazioa
Beisgen, Beverly Ann, eta Marilyn Crouch Kraitchman. Senior Centers: Opportunities for Successful Aging. Springer Pub. Co., 2003.
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