Hulley, S. B. (2013). Designing clinical research (4th ed.). Wolters Kluwer/Lippincott Williams & Wilkins.
Chicago Style (17th ed.) CitationHulley, Stephen B. Designing Clinical Research. 4th ed. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins, 2013.
MLA citiranjeHulley, Stephen B. Designing Clinical Research. 4th ed. Wolters Kluwer/Lippincott Williams & Wilkins, 2013.
Opozorilo: Ti citati niso vedno 100% točni.