TY  - GEN
AU  - Johnson, Burke,
AU  - Christensen, Larry B.,
TI  - Educational research : : quantitative, qualitative, and mixed approaches 
SN  - 9781506386591
AV  - LB1028 JOH 2017 
PY  - 2017///
CY  - Thousand Oaks, Califonia
PB  - Sage
KW  - Education
KW  - Research
N1  - Includes bibliographical references and indexes
ER  -