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  1. 1

    Seasonal variations in water quality of Laguna de Bay, Philippines Trends and implications 由 Barril, C. R.

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    Seasonal variations in water quality of Laguna de Bay, Philippines Trends and implications
  2. 2

    Rapid bioassay of pesticide residues in vegetable samples from Laguna, Philippines 由 Tipa, E. V.

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    Rapid bioassay of pesticide residues in vegetable samples from Laguna, Philippines
  3. 3

    Water quality of Laguna de Bay status and trends 由 Barril, C.R

    出版 1994
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    Water quality of Laguna de Bay status and trends

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