TY  - BOOK
AU  - Creswell, John W.
TI  - Educational research: planning, conducting and evaluating quantitative and qualitative research (4th ed)
SN  - 9781292021126
AV  - LB1028  .C92 2014
PY  - 2014///
CY  - Essex
PB  - Pearson
KW  - Education research methodology
N1  - Include bibliographical reference and index.
ER  -