TY  - BOOK
AU  - Gall,Meredith D.
AU  - Gall,Joyce P.
AU  - Borg,Walter R.
TI  - Educational Research: an introduction
SN  - 978-0205503452
PY  - 2006///
CY  - Boston
PB  - Allyn and Bacon
KW  - Bildungsforschung
KW  - USA
ER  -