TY  - BOOK
AU  - KOWALSKI,Theodore J.
TI  - The school principal: Visionary leadership and competent management
SN  - 9780415806237
AV  - 371.2 
U1  - 371.2 22
PY  - 2010///
CY  - London
PB  - Routledge
N1  - Include index and reference
ER  -