TY  - BOOK
AU  - Tonnsen,Sandra
TI  - What principals should know about--: a primer on school subjects 
SN  - 0398070105
U1  - 371.2/012 21
PY  - 2000///.
CY  - Springfield: 
PB  - Charles C. Thomas, 
KW  - Education
KW  - Curricula
KW  - United States
KW  - Educational leadership
KW  - School principals
N1  - Includes bibliographical references
ER  -