APA-referens (7:e uppl.)
Campbell, M. J., & Walters, S. J. (2014). How to design, analyse and report cluster randomised trials in medicine and health related research. Wiley.
Chicago-referens (17:e uppl.)
Campbell, Michael J., och Stephen John Walters. How to Design, Analyse and Report Cluster Randomised Trials in Medicine and Health Related Research. Chichester, England: Wiley, 2014.
MLA-referens (9:e uppl.)
Campbell, Michael J., och Stephen John Walters. How to Design, Analyse and Report Cluster Randomised Trials in Medicine and Health Related Research. Wiley, 2014.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.