Cita APA (7a ed.)
Hulley, S. B. (2007). Designing clinical research (3rd ed.). Lippincott Williams & Wilkins.
Cita Chicago Style (17a ed.)
Hulley, Stephen B. Designing Clinical Research. 3rd ed. Philadelphia, PA: Lippincott Williams & Wilkins, 2007.
Cita MLA (9a ed.)
Hulley, Stephen B. Designing Clinical Research. 3rd ed. Lippincott Williams & Wilkins, 2007.
Precaución: Estas citas no son 100% exactas.