Cita APA

ebrary, Inc, Wilmoth, J. M., & Ferraro, K. F. (2007). Gerontology: Perspectives and issues (3rd ed.). Springer Pub..

Citación estilo Chicago

ebrary, Inc, Janet M. Wilmoth, and Kenneth F. Ferraro. Gerontology: Perspectives and Issues. 3rd ed. New York: Springer Pub., 2007.

Cita MLA

ebrary, Inc, et al. Gerontology: Perspectives and Issues. 3rd ed. Springer Pub., 2007.