TY - BOOK AU - Johnson, Burke and Christensen, Larry TI - Educational Research : Quantitative, Qualitative, and Mixed Approaches : GSC002061 SN - 1412954568 U1 - 370.72 J66E Third Edition PY - 2008/// CY - United States of America PB - SAGE Publications; London KW - Education - Research KW - Research Methods KW - Research Foundation ER -