Cita APA (7th ed.)

Metcalf. (2012). WASTEWATER ENGINEERING: TREATMENT AND REUSE (4 TH.). TMH.

Cita Chicago (17th ed.)

Metcalf. WASTEWATER ENGINEERING: TREATMENT AND REUSE. 4 TH. NEW DELHI: TMH, 2012.

Cita MLA (9th ed.)

Metcalf. WASTEWATER ENGINEERING: TREATMENT AND REUSE. 4 TH. TMH, 2012.