Biological Indices of Stream Pollution
A thorough biological survey and evaluation is a lengthy and expensive project. The number of technically trained persons required prevent its use by most public agencies. Since public health departments are the groups most frequently concerned with measuring the effects of pollution in streams, a n...
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| Format: | Others |
| Language: | English |
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North Texas State College
1952
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| Online Access: | https://digital.library.unt.edu/ark:/67531/metadc130298/ |