APA-referens (7:e uppl.)

Wilson, S., Delaney, B., Roalfe, A., & Hobbs, R. (1999). Clinical trials in primary care. Costs of research should not be borne by service practitioners.

Chicago-referens (17:e uppl.)

Wilson, S., B. Delaney, A. Roalfe, och R. Hobbs. Clinical Trials in Primary Care. Costs of Research Should Not Be Borne by Service Practitioners. 1999.

MLA-referens (9:e uppl.)

Wilson, S., et al. Clinical Trials in Primary Care. Costs of Research Should Not Be Borne by Service Practitioners. 1999.