TY  - BOOK
AU  - Polit, Denise F.
AU  - Beck, Cheryl Tatano
TI  - Nursing research: principles and methods
SN  - 9780781737333
U1  - N 610.73072 
PY  - 2004///
CY  - Philadelphia
PB  - Lippincott William & Wilkins
KW  - Nursing - Research
KW  - Medical Sciences
ER  -