APA (7th ed.) Citation

Sharpe, M., Nimnuan, C., & Wessely, S. (1999). Functional somatic syndromes - Reply.

Chicago Style (17th ed.) Citation

Sharpe, M., C. Nimnuan, and S. Wessely. Functional Somatic Syndromes - Reply. 1999.

MLA (9th ed.) Citation

Sharpe, M., et al. Functional Somatic Syndromes - Reply. 1999.