APA (7th ed.) Citation

Richardson, A., Sawyer, S., Jordan, K., Cooper, C., Sundaram, S., & Arden, N. (2006). Patients with knee osteoarthritis in primary care: Obesity strongly predicts current knee pain.

Chicago Style (17th ed.) Citation

Richardson, A., S. Sawyer, K. Jordan, C. Cooper, S. Sundaram, and N. Arden. Patients with Knee Osteoarthritis in Primary Care: Obesity Strongly Predicts Current Knee Pain. 2006.

MLA (9th ed.) Citation

Richardson, A., et al. Patients with Knee Osteoarthritis in Primary Care: Obesity Strongly Predicts Current Knee Pain. 2006.