Dyfyniad APA

METCALF &EDDY. (1993). WASTE WATER ENGG. TREATMENT AND DISPOSAL REUSE. TMH.

Dyfyniad Arddull Chicago

METCALF &EDDY. WASTE WATER ENGG. TREATMENT AND DISPOSAL REUSE. TMH, 1993.

Dyfyniad MLA

METCALF &EDDY. WASTE WATER ENGG. TREATMENT AND DISPOSAL REUSE. TMH, 1993.

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