TY  - BOOK
AU  - DePoy, Elizabeth
TI  - Introduction to research : undersatnding and applying multiple strategies 
SN  - 978 0 8151 0979 2
U1  - 610 72 DEP NO 4 
PY  - 1998///
CY  - New York  
PB  -  Mosby
KW  - MEDICAL CARE RESEARCH METHODOLOGY
ER  -