Cita APA (7th ed.)

Raj, A., Birring, S., Green, R., Grant, A., de Caestecker, J., & Pavord, I. (2008). Prevalence of inflammatory bowel disease in patients with airways disease.

Cita Chicago (17th ed.)

Raj, A., S. Birring, R. Green, A. Grant, J. de Caestecker, i I. Pavord. Prevalence of Inflammatory Bowel Disease in Patients with Airways Disease. 2008.

Cita MLA (9th ed.)

Raj, A., et al. Prevalence of Inflammatory Bowel Disease in Patients with Airways Disease. 2008.