Polit, D. F., & Beck, C. T. (2010). Essentials of nursing research: Appraising evidence for nursing practice (Seventh edition.). Wolters Kluwer Health/Lippincott Williams & Wilkins.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Polit, Denise F., و Cheryl Tatano Beck. Essentials of Nursing Research: Appraising Evidence for Nursing Practice. Seventh edition. Philadelphia: Wolters Kluwer Health/Lippincott Williams & Wilkins, 2010.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Polit, Denise F., و Cheryl Tatano Beck. Essentials of Nursing Research: Appraising Evidence for Nursing Practice. Seventh edition. Wolters Kluwer Health/Lippincott Williams & Wilkins, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.