APA aipamena

Barr, G., Shale, D., & Jewell, D. (1986). Ulcerative colitis and sarcoidosis. BMJ Publishing Group.

Chicago Style aipamena

Barr, G., D. Shale, and D. Jewell. Ulcerative Colitis and Sarcoidosis. BMJ Publishing Group, 1986.

MLA aipamena

Barr, G., et al. Ulcerative Colitis and Sarcoidosis. BMJ Publishing Group, 1986.