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Richard Helmer | lit.salon

Author

Richard Helmer

Born 1943

7 works

1977–1998 across 5 dated works

No biography is available yet.

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Weitergehende Abwasserreinigung1977
Global freshwater quality: a first assessment1990
With Deborah V. Chapman, Michel Meybeck
Water pollution control: a guide to the use of water quality management principles1997

Books

5 works

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Water Pollution Control: A Guide to the Use of Water Quality Management Principles1998
2 editions
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Global freshwater quality: a first assessment1990
With Deborah V. Chapman, Michel Meybeck
2 editions
shelves
0
reviews
0
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0
quotes
0
Water pollution control: a guide to the use of water quality management principles1997
1 edition
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Water pollution control: a guide to the use of water quality management principles1997
1 edition
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Weitergehende Abwasserreinigung1977
1 edition
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