APA-čujuhus (7. p.)
Polit, D. F., & Beck, C. T. (2018). Essentials of nursing research: Appraising evidence for nursing practice (9th ed.). Wolters Kluwer.
Chicago-čujuhus (17. p.)
Polit, Denise F., juo Cheryl Tatano Beck. Essentials of Nursing Research: Appraising Evidence for Nursing Practice. 9th ed. Philadelphia: Wolters Kluwer, 2018.
MLA-čujuhus (9. p.)
Polit, Denise F., juo Cheryl Tatano Beck. Essentials of Nursing Research: Appraising Evidence for Nursing Practice. 9th ed. Wolters Kluwer, 2018.
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