APA (7e ed.) Bronvermelding

Campbell, M., Elbourne, D., & Altman, D. (2004). CONSORT statement: Extension to cluster randomised trials.

Chicago (17e ed.) Bronvermelding

Campbell, M., DR Elbourne, en D. Altman. CONSORT Statement: Extension to Cluster Randomised Trials. 2004.

MLA (9e ed.) Bronvermelding

Campbell, M., et al. CONSORT Statement: Extension to Cluster Randomised Trials. 2004.