Cita APA (7a ed.)

Wessely, S., Hotopf, M., & Sharpe, M. (1998). Chronic fatigue and its syndromes. University Press.

Cita Chicago Style (17a ed.)

Wessely, Simon, Matthew Hotopf, y Michael Sharpe. Chronic Fatigue and Its Syndromes. Oxford [etc.]: University Press, 1998.

Cita MLA (9a ed.)

Wessely, Simon, et al. Chronic Fatigue and Its Syndromes. University Press, 1998.