Gaya APA

Polit, D, F., Beck, C, T. (2008). Nursing Research : Generating and Assessing Evidence for Nursing Practice (8). Amerika: Lippincott Williams & Wilkins.

Gaya MLA

Polit, Denise, F.., Beck, Cheryl, Tatano. "Nursing Research : Generating and Assessing Evidence for Nursing Practice". 8 Amerika: Lippincott Williams & Wilkins, 2008. Text.