Gaya APA

Polit, D, F., Beck, C, T. (2012). Nursing research: generating and assessing evidence for nursing practice Ninth Edition (Ninth Edition). Philadephia: Wolters Kluwer.

Gaya MLA

Polit, Denise, F., Beck, Cheryl, Tatano. "Nursing research: generating and assessing evidence for nursing practice Ninth Edition". Ninth Edition Philadephia: Wolters Kluwer, 2012. Text.