TY  - BOOK
AU  - Creswell,John W.
TI  - Research design : qualitative & quantitative approaches
AV  - H62 C737R
PY  - 1994///
CY  - Thousand Oaks, Calif.
PB  - Sage
KW  - SOCIAL SCIENCES
KW  - RESEARCH
KW  - METHODOLOGY
KW  - STATISTICAL METHODS
ER  -