Citazione Stile APA (7a Edizione)

ebrary, Inc, Ferraro, K. F., & Wilmoth, J. M. (2013). Gerontology: Perspectives and issues (4th ed.). Springer.

Citazione stile Chigago Style (17a edizione)

ebrary, Inc, Kenneth F. Ferraro, e Janet M. Wilmoth. Gerontology: Perspectives and Issues. 4th ed. New York, NY: Springer, 2013.

Citatione MLA (9a ed.)

ebrary, Inc, et al. Gerontology: Perspectives and Issues. 4th ed. Springer, 2013.