Gaya APA
Metcalf, ., Eddy, .
(2003).
Wastewater Engineering Treatmen And Reuse
(
Fourth Edition)
.
Boston:
McGraw-Hill.
Gaya MLA
Metcalf, ., Eddy, .
"Wastewater Engineering Treatmen And Reuse".
Fourth Edition
Boston:
McGraw-Hill,
2003.
Textbook.