TY  - BOOK
AU  - Smith,Wilma F.
AU  - Andrews,Richard L.
TI  - Instructional leadership: how principals make a difference 
SN  - 087120164x
U1  - 371.2 
PY  - 1989///
CY  - Virginia
PB  - Association for Supervision and Curriculum Development
KW  - School principals
KW  - Leadership
N1  - 300-399; 371.2
ER  -