957 resultados para Water quality
Resumo:
"This report marks the first anniversary of the Clean Water Action plan".
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Some parts are composed chiefly of statistical tables.
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Includes bibliographies.
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"August 1981."
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"September 1982."
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Item 624-B
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Mode of access: Internet.
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Mode of access: Internet.
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Description based on: 1980.
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Description based on: 1989.
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
Resumo:
Vols. for 1964/65- contain two parts: pt. 1, Surface water records; pt. 2, Water quality records.
Resumo:
"Water Resources Division"--T.p. verso.