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• Biological methods for the assessment of water quality : a symposium presented at the seventy-fifth annual meeting, American Society for Testing and Materials / John Cairns, Jr., and K. L. Dickson, editors.
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• Biological methods for the assessment of water quality a symposium presented at the seventy-fifth annual meeting, American Society for Testing and Materials / John Cairns, Jr., and K. L. Dickson, editors, Virginia Polytechnic Institute and State University.
  Published: (1973)