Cita APA (7a ed.)

Clark, C., Buchwald, D., MacIntyre, A., Sharpe, M., & Wessely, S. (2002). Chronic fatigue syndrome: A step towards agreement.

Cita Chicago Style (17a ed.)

Clark, C., D. Buchwald, A. MacIntyre, M. Sharpe, y S. Wessely. Chronic Fatigue Syndrome: A Step Towards Agreement. 2002.

Cita MLA (9a ed.)

Clark, C., et al. Chronic Fatigue Syndrome: A Step Towards Agreement. 2002.