APA (7th ed.) Citation

Wordsworth, P., Orchard, T., Welsh, K., & Jewell, D. (1998). Peripheral arthritis and inflammatory bowel disease.

Chicago Style (17th ed.) Citation

Wordsworth, P., T. Orchard, K. Welsh, and D. Jewell. Peripheral Arthritis and Inflammatory Bowel Disease. 1998.

MLA (9th ed.) Citation

Wordsworth, P., et al. Peripheral Arthritis and Inflammatory Bowel Disease. 1998.