TY  - BOOK
AU  - Jorgensen, S. E. 
TI  - Principles of enviornmental science and technology / 
SN  - 0023618817
U1  - 363.7 JOR 
PY  - 1989///
CY  - Amsterdam, 
PB  - Elsevier
KW  -  
KW  - School supritendents and principals - United States
ER  -