TY  - BOOK
AU  - Richard L. Andrews
AU  - Wilma F. Smith
TI  - Instructional leadership: How principals make a difference
SN  - 0-87120-164-x
U1  -  371.2012 
PY  - 1989///
CY  - Washington,USA
PB  - The Association for Supervision and Curriculum Dev
N1  - P. copy
ER  -