TY  - BOOK
AU  - Polit, Denise F.
AU  - Beck, Cerl Tatano
TI  - Nursing research: principles and methods 
SN  - 0781756634
AV  - RT 81.5  .P64 2004
PY  - 2004///
CY  - Philadelphia
PB  - Lippincott
KW  - Nursing
KW  - Research
KW  - Methodology
ER  -