TY  - BOOK
AU  - Creswell, John W.
TI  - Research design: qualitative, quantitative, and mixed methods approaches
SN  - 9780761924425
U1  - 300.72 CRE 
PY  - 2003///
CY  - London
PB  - Sage publications
KW  - Social sciences
KW  - Methodology
KW  - Statistical methods
N1  - Includes bibliographical references and index
ER  -