Gaya APA

Polit, D, F., Beck, C, T. (). Ebook Keperawatan - Nursing Research Principles and Methods . : William Walkin.

Gaya MLA

Polit, Denise, F.., Beck, Cheryl, Tatano. "Ebook Keperawatan - Nursing Research Principles and Methods". : William Walkin, . Text.