TY  - BOOK
AU  -  Polit,Denise F.
AU  -  Beck, Cheryl Tatano
TI  -  Essentials of nursing research: :  methods, appraisal, and utilizati on/ 
SN  -  0781749727
PY  - 2006///
CY  -  Philadelphia: 
PB  -  Lippincott Williams and Wilkins , 
KW  -  Nursing Research
N1  -  Includes bibliographical references and index
ER  -