TY  - BOOK
AU  - Polit,Denise F.
AU  - Hungler,Bernadette P.
TI  - Nursing research : principles and methods: study guide 
SN  - 0397548214
PY  - 1991///
CY  - Philadelphia, N.Y.
PB  - J.B. Lippincott
KW  - Nursing research
N1  - Contents : The scientific research process--Preliminary research steps
ER  -