TY  - BOOK
AU  - Ravitch, Sharon M.
TI  - Reason & rigor : how conceptual frameworks guide research
SN  - 9781412981255
PY  - 2012///
CY  - Thousand Oaks, CA : 
PB  - Sage, 
KW  - 1.Social sciences-Research-Methodology. 2.Research-Methodology. 3.Qualitative research
ER  -