APA-viite (7. p.)

Francis, N., Butler, C., Hood, K., Cals, J., Verheij, T., Little, P., . . . Coenen, S. (2011). Severity assessment for lower respiratory tract infections: Potential use and validity of the CRB-65 in primary care.

Chicago-viite (17. p.)

Francis, N., C. Butler, K. Hood, J. Cals, T. Verheij, P. Little, H. Goossens, ja S. Coenen. Severity Assessment for Lower Respiratory Tract Infections: Potential Use and Validity of the CRB-65 in Primary Care. 2011.

MLA-viite (9. p.)

Francis, N., et al. Severity Assessment for Lower Respiratory Tract Infections: Potential Use and Validity of the CRB-65 in Primary Care. 2011.