Eldridge, S., & Kerry, S. M. (2012). A practical guide to cluster randomised trials in health services research. John Wiley & Sons.
Dyfyniad Arddull ChicagoEldridge, Sandra, and Sally M. Kerry. A Practical Guide to Cluster Randomised Trials in Health Services Research. Chichester, West Sussex: John Wiley & Sons, 2012.
Dyfyniad MLAEldridge, Sandra, and Sally M. Kerry. A Practical Guide to Cluster Randomised Trials in Health Services Research. John Wiley & Sons, 2012.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.