Cita APA (7th ed.)

Yu, J., East, J., & Kaltenbach, T. (2016). Surveillance of patients with inflammatory bowel disease. Elsevier.

Cita Chicago (17th ed.)

Yu, J., J. East, i T. Kaltenbach. Surveillance of Patients with Inflammatory Bowel Disease. Elsevier, 2016.

Cita MLA (9th ed.)

Yu, J., et al. Surveillance of Patients with Inflammatory Bowel Disease. Elsevier, 2016.