Portney, L. G. (2020). Foundations of clinical research: Applications to evidence-based practice (Fourth edition.). F.A. Davis.
Lua i Stíl Chicago (17ú heag.)Portney, Leslie Gross. Foundations of Clinical Research: Applications to Evidence-based Practice. Fourth edition. Philadelphia: F.A. Davis, 2020.
Lua MLA (8ú heag.)Portney, Leslie Gross. Foundations of Clinical Research: Applications to Evidence-based Practice. Fourth edition. F.A. Davis, 2020.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.