TY  - BOOK
ED  - Association for Supervision and Curriculum Development
TI  - Leadership for improving instruction
U1  - 370.11 23
PY  - 1960///.
CY  - Wishington: 
PB  - Association for Supervision and Curriculum Development, 
KW  - Education
KW  - Aims and objectives
N1  - Includes bibliographical references and index
ER  -