TY  - BOOK
AU  - Creswell,John W.
TI  - Research design: qualitative, quantitative, and mixed method approaches
SN  - 9781452274614
U1  - 300.721 23
PY  - 2014///
CY  - London
PB  - SAGE
KW  - Social sciences--Research--Methodology
KW  - Social sciences--Statistical methods
N1  - Includes subject index
ER  -