APA-Zitierstil (7. Ausg.)

Crocker, J., Farrar, N., Cook, J., & Bulbulia, R. (2020). Recruitment and retention of participants in UK surgical trials: A survey of key issues reported by trial staff. Wiley.

Chicago-Zitierstil (17. Ausg.)

Crocker, JC, N. Farrar, J. Cook, und R. Bulbulia. Recruitment and Retention of Participants in UK Surgical Trials: A Survey of Key Issues Reported by Trial Staff. Wiley, 2020.

MLA-Zitierstil (9. Ausg.)

Crocker, JC, et al. Recruitment and Retention of Participants in UK Surgical Trials: A Survey of Key Issues Reported by Trial Staff. Wiley, 2020.