TY  - BOOK
AU  - Creswell, John W.
TI  - Research design: qualitative, quantitative, and mixed methods approaches 
SN  - 9781412965569 (cloth)
AV  - H 62 C74R 2009
PY  - 2009///
CY  - Los Angeles
PB  - Sage
KW  - SOCIAL SCIENCES
KW  - RESEARCH
KW  - METHODOLOGY
KW  - STATISTICAL METHODS
N1  - Includes glossary and index; Preliminary considerations; Designing research
ER  -