Dyfyniad APA

DESIGNING CLINICAL RESEARCH.. & HULLEY, S. B. [. (2001). Designing clinical research an epidemiologis approach.-- ed.2. Lippincott Williams and Wilkins.

Dyfyniad Arddull Chicago

DESIGNING CLINICAL RESEARCH.. and Stephen B. [et.al] HULLEY. Designing Clinical Research an Epidemiologis Approach.-- Ed.2. Philadelphia: Lippincott Williams and Wilkins, 2001.

Dyfyniad MLA

DESIGNING CLINICAL RESEARCH.. and Stephen B. [et.al] HULLEY. Designing Clinical Research an Epidemiologis Approach.-- Ed.2. Lippincott Williams and Wilkins, 2001.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.