Cita APA (7a ed.)

Williamson, P., Gamble, C., Altman, D., & Hutton, J. (2005). Outcome selection bias in meta-analysis.

Cita Chicago Style (17a ed.)

Williamson, P., C. Gamble, D. Altman, y J. Hutton. Outcome Selection Bias in Meta-analysis. 2005.

Cita MLA (9a ed.)

Williamson, P., et al. Outcome Selection Bias in Meta-analysis. 2005.