Global freshwater quality
Subtitle: a first assessment
By: edited by Michel Meybeck, Deborah V. Chapman, Richard Helmer.
Contributors: Meybeck, M.; Chapman, Deborah V.; Helmer, Richard, 1943-; World Health Organization.; United Nations Environment Programme.; Global Environmental Monitoring System.
Publisher: Published on behalf of the World Health Organization and the United Nations Environment Programme by Blackwell Reference
Published: 1990
Place of publication: Oxford, UK; Cambridge, Mass., USA
Language: eng
Number of pages: 306
Subjects: Water quality; Water -- Pollution
Notes: Includes bibliographical references and index.
At head of title: Global Environment Monitoring System.