Não informado. (1990). Research Journal of the Water Pollution Control Federation. Water Pollution Control Federation.
Citace podle Chicago (17th ed.)Não informado. Research Journal of the Water Pollution Control Federation. Alexandria, Va: Water Pollution Control Federation, 1990.
Citace podle MLA (8th ed.)Não informado. Research Journal of the Water Pollution Control Federation. Water Pollution Control Federation, 1990.
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