TY  - BOOK
AU  - Polit O'Hara, Denise
TI  - Study guide for essentials of nursing research: methods, appraisal and utilization
SN  - 0397549237
PY  - 1993///
CY  - Philadelphia
PB  - J.B. Lippincott, 
KW  - Nursing -- Research
ER  -