TY  - BOOK
AU  - Polit, Denise F.
AU  - Beck, Cheryl Tatano
TI  - Essentials of Nursing Research : appraising evidence for nursing practice
SN  - 9781451176803
AV  - RT81.5 .P63
PY  - 2014///
CY  - Philadelphia
PB  - Wolters Kluwer/ Lippincott Williams & Wilkins
ER  -