TY  - BOOK
AU  - Polit, D.F.
AU  - Beck, C.T.
TI  - Nursing research: generating and assessing evidence for nursing practice. 9th td
SN  - 9781451109146
PY  - 2011///
PB  - Wloters Kluwer; Lippincott Williams and Wilkins
KW  - Nursing Research
ER  -