TY  - BOOK
AU  - Schollaert, Rudi 
AU  - Leenheer, Pieter
TI  - Spirals of Change : Educational change as a driving force for school improvement
SN  - 9789020968125
U1  - 371.2  DC20
PY  - 2006///
CY  - Belgium
PB  - LannooCampus Publishers
ER  -