TY  - BOOK
AU  - Desonie, Dana.
TI  - Hydrosphere: freshwater systems and pollution
SN  - 9780816062157
AV  - QH 545 .D47 2007 10606
PY  - 2008///
CY  - USA
PB  - Chelsea house publishers 
KW  - 1.Water-pollution-environmental aspects-Juvenile literature   2.Water-pollution-Health aspect-Juvenile literature  3. Fresh water-juvenile literature  4. Water-purification-Juvenile literature
N1  - Includes bibliographical references and index
ER  -