TY  - BOOK
AU  - Beck,Gregor Gilpin
AU  - Dobson,Clive
TI  - Watersheds: a practical handbook for healthy water 
SN  - 1552093301 (pbk.) :
AV  - QH 102 B393w 1999
U1  - 577.6 
PY  - 1999///
CY  - Willowdale, Ont.
PB  - Firefly Books
KW  - Watersheds
KW  - North America
KW  - Water quality
KW  - Ecology
KW  - Pollution
KW  - Cuencas hidrográficas
KW  - América del Norte
KW  - Calidad del agua
KW  - Ecología
KW  - Restoration ecology
KW  - Bassins hydrographiques
KW  - Amâerique du Nord
KW  - Eau
KW  - Qualitâe
KW  - âEcologie
KW  - Râehabilitation (âEcologie)
N1  - Includes bibliographical references and index; What is a watershed? -- How watersheds work : water and nutrient cycles -- From headwaters to outflows : parts of a watershed -- Natural changes within watersheds -- Air pollution -- Water pollution -- The impact of exotic species : hidden invaders -- Habitat loss and degradation -- Ecological restoration : righting environmental wrongs
UR  - http://www.loc.gov/catdir/enhancements/fy0614/2002319027-b.html
UR  - http://www.loc.gov/catdir/enhancements/fy0614/2002319027-d.html
UR  - http://www.loc.gov/catdir/enhancements/fy0614/2002319027-t.html
ER  -