APA Style

Polit, D, F., Beck, C, T. (2014). Essentials of nursing research: appraising evidence for nursing practice (8th ed.). pau: .

MLA Style

Polit, Denise, F.., Beck, Cheryl, Tatano.. "Essentials of nursing research: appraising evidence for nursing practice". 8th ed. pau: , 2014. print.