Cita APA (7th ed.)

Duchateau, L., & Janssen, P. (2008). The frailty model (1a. ed.). Springer.

Cita Chicago (17th ed.)

Duchateau, Luc, i Paul Janssen. The Frailty Model. 1a. ed. Nueva York: Springer, 2008.

Cita MLA (9th ed.)

Duchateau, Luc, i Paul Janssen. The Frailty Model. 1a. ed. Springer, 2008.