Polit, D. F., & Beck, C. T. (2012). Nursing research: Generating and assessing evidence for nursing practice (9th ed.). Wolters Kluwer/Lippincott Williams & Wilkins.
Chicago-referens (17:e uppl.)Polit, Denise F., och Cheryl Tatano Beck. Nursing Research: Generating and Assessing Evidence for Nursing Practice. 9th ed. Philadelphia: Wolters Kluwer/Lippincott Williams & Wilkins, 2012.
MLA-referens (9:e uppl.)Polit, Denise F., och Cheryl Tatano Beck. Nursing Research: Generating and Assessing Evidence for Nursing Practice. 9th ed. Wolters Kluwer/Lippincott Williams & Wilkins, 2012.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.