Cita APA (7a ed.)

Joyce, J., Rabe-Hesketh, S., & Wessely, S. (1998). The example of chronic fatigue syndrome. [s.n.].

Cita Chicago Style (17a ed.)

Joyce, John, Sophia Rabe-Hesketh, y Simon Wessely. The Example of Chronic Fatigue Syndrome. [S.l.]: [s.n.], 1998.

Cita MLA (9a ed.)

Joyce, John, et al. The Example of Chronic Fatigue Syndrome. [s.n.], 1998.