APA-čujuhus (7. p.)
Machin, D., & Campbell, M. J. (2010). Randomized clinical trials: Design, practice, and reporting. John Wiley & Sons.
Chicago-čujuhus (17. p.)
Machin, David, juo Michael J. Campbell. Randomized Clinical Trials: Design, Practice, and Reporting. Chichester, West Sussex ; Hoboken, NJ: John Wiley & Sons, 2010.
MLA-čujuhus (9. p.)
Machin, David, juo Michael J. Campbell. Randomized Clinical Trials: Design, Practice, and Reporting. John Wiley & Sons, 2010.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.