APA (7th ed.) Citation

Watts, R., Suppiah, R., Merkel, P., & Luqmani, R. (2011). Systemic vasculitis--is it time to reclassify?

Chicago Style (17th ed.) Citation

Watts, R., R. Suppiah, P. Merkel, and R. Luqmani. Systemic Vasculitis--is It Time to Reclassify? 2011.

MLA (9th ed.) Citation

Watts, R., et al. Systemic Vasculitis--is It Time to Reclassify? 2011.