Polit, D. F. (2018). Essentials of nursing research: Appraising evidence for nursing practice (Ninth edition.). Philadenphia: Wolters Lkuwer.
Trích dẫn theo kiểu ChicagoPolit, Denise F.. Essentials of Nursing Research: Appraising Evidence for Nursing Practice. Ninth edition. Philadenphia: Wolters Lkuwer, 2018.
Trích dẫn MLAPolit, Denise F.. Essentials of Nursing Research: Appraising Evidence for Nursing Practice. Ninth edition. Philadenphia: Wolters Lkuwer, 2018.
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