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Beck, Gregor Gilpin, 1964-

Watersheds : a practical handbook for healthy water / illustrations and original concept by Clive Dobson ; text by Gregor Gilpin Beck. - Willowdale, Ont. : Firefly Books, 1999. - 152 p. : ill., maps ; 26 cm.

Includes bibliographical references and index.

1552093301 (pbk.) : $19.95


Ecology.
Pollution.
Restoration ecology--North America.
Water quality.
Watersheds--North America.
Écologie.
Bassins hydrographiques--Amérique du Nord.
Eau--Qualité.
Pollution.
Réhabilitation (Écologie)--Amérique du Nord.

333.73