TY  - BOOK
AU  - Johson,B.
AU  - Christensen.L
TI  - Educational Research: quantitave, qualitative, and mixed approaches
SN  - 0205361269
AV  - DUCE LB1028.J59 
PY  - 2004///
CY  - Boston
PB  - Pearson
N1  - includes bibliographical references, appendix and index
ER  -