METCALF. Wastewater engineering: Treatment and reuse.fourth ed. Mc Graw Hill.
Lua i Stíl Chicago (17ú heag.)METCALF. Wastewater Engineering: Treatment and Reuse.fourth Ed. Mc Graw Hill.
Lua MLA (8ú heag.)METCALF. Wastewater Engineering: Treatment and Reuse.fourth Ed. Mc Graw Hill.
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