TY  - BOOK
AU  - Blase  Joseph
TI  - Handbook of instructional leadership: : How successful principals promote teaching and learning 
SN  - 9780761931140
AV  - LB 2806.4 .B6 2004 
PY  - 2004///
CY  - Thousand oaks ,California
PB  - Corwin press
KW  - Instructional  leadership
ER  -