TY  - BOOK
AU  - Creswell,John W.
TI  - Research design: qualitative, quantitative, and mixed method approaches 
SN  - 0761924426 (pbk.)
PY  - 2003///
CY  - Thousand Oaks
PB  - SAGE Publications
KW  - Social sciences
KW  - Research
KW  - Methodology
KW  - Statistical methods
N1  - Includes bibliographical references (p. 228-236) and indexes
ER  -