Cita APA (7th ed.)
Beisgen, B. A., & Kraitchman, M. C. (2003). Senior centers: Opportunities for successful aging. Springer Pub. Co..
Cita Chicago (17th ed.)
Beisgen, Beverly Ann, i Marilyn Crouch Kraitchman. Senior Centers: Opportunities for Successful Aging. New York: Springer Pub. Co., 2003.
Cita MLA (9th ed.)
Beisgen, Beverly Ann, i Marilyn Crouch Kraitchman. Senior Centers: Opportunities for Successful Aging. Springer Pub. Co., 2003.
Atenció: Aquestes cites poden no estar 100% correctes.