Dyfyniad APA
Machin, D., & Campbell, M. J. (2010). Randomized clinical trials: Design, practice, and reporting. John Wiley & Sons.
Dyfyniad Arddull Chicago
Machin, David, and Michael J. Campbell. Randomized Clinical Trials: Design, Practice, and Reporting. Chichester, West Sussex ; Hoboken, NJ: John Wiley & Sons, 2010.
Dyfyniad MLA
Machin, David, and Michael J. Campbell. Randomized Clinical Trials: Design, Practice, and Reporting. John Wiley & Sons, 2010.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.