TY  - BOOK
AU  - Creswell, John W.
TI  - Research design: qualitative, quantitative and mixed methods approaches 
SN  - 9781452226095 (cloth)
AV  - H62 .C69 2014
PY  - 2014///
CY  - Los Angeles
PB  - SAGE Publications, Inc.
KW  - Research design
N1  - Includes glossary and indexes
ER  -