TY  - BOOK
AU  - Creswell, John W.
TI  - Research design: qualitative, quantitative, and mixed methods approaches 
SN  - 9781412965576
AV  - H 62 C737R 2009
PY  - 2009///
CY  - Los Angeles, Calif.
PB  - SAGE
KW  - Social sciences
KW  - Research
KW  - Methodology
KW  - Statistical methods
KW  - Behavioral Sciences
KW  - Methods
KW  - Statistics as Topic
N1  - Includes bibliographical references and indexes
ER  -