12 resultados para [night] [water layer with no specific feature]
em University of Michigan
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Mode of access: Internet.
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Pt. II has title: River gardens; being an account of the best methods of cultivating fresh water plants in aquaria.
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"April 1970."
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Bibliography: leaf 54.
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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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1 ft. 13/32 in.x 8 5/8 in.; ink, opaque watercolor and gold on paper
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"Printed: December 1987."
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The establishment of a Total Maximum Daily Load sets the pollutant reduction goal necessary to improve impaired waters. It determines the load, or quantity of any given pollutant that can be allowed in a particular water body. A TDML must consider all potential sources of pollutants whether point or nonpoint. It also takes into account a margin of safety, which reflects scientific uncertainty, as well as the effects of seasonal variation.
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Mode of access: Internet.