Cita APA (7th ed.)
Duchateau, L., & Janssen, P. (2008). The frailty model. Springer Verlag.
Cita Chicago (17th ed.)
Duchateau, Luc, i Paul Janssen. The Frailty Model. New York: Springer Verlag, 2008.
Cita MLA (9th ed.)
Duchateau, Luc, i Paul Janssen. The Frailty Model. Springer Verlag, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.