84 resultados para Water - Purification - Biological treatment
em University of Michigan
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Mode of access: Internet.
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Mode of access: Internet.
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Mode of access: Internet.
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Supported by Division of Water Supply and Pollution Control U.S. Public Health Service Research Project WP-138.
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Grant no. 12060 DPE.
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Mode of access: Internet.
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"Second edition."
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Mode of access: Internet.
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Mode of access: Internet.
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"18 June 1980."
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"June 1971."
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Includes index.
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"1 October 1969"--P. i.
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"September 1983."
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"5 March 1979."