Παραπομπή σε μορφή APA (7η εκδ.)

Cook, J., Hislop, J., Altman, D., Briggs, A., Fayers, P., Norrie, J., . . . Vale, L. (2014). Use of methods for specifying the target difference in randomised controlled trial sample size calculations: Two surveys of trialists' practice. SAGE Publications.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Cook, J., J. Hislop, D. Altman, A. Briggs, P. Fayers, J. Norrie, C. Ramsay, I. Harvey, και L. Vale. Use of Methods for Specifying the Target Difference in Randomised Controlled Trial Sample Size Calculations: Two Surveys of Trialists' Practice. SAGE Publications, 2014.

Παραπομπή σε μορφή MLA (9th εκδ.)

Cook, J., et al. Use of Methods for Specifying the Target Difference in Randomised Controlled Trial Sample Size Calculations: Two Surveys of Trialists' Practice. SAGE Publications, 2014.