Gaya APA
Tchobanoglous, F., L., B., G. (1991).
Wastewater Engineering : treatment, disposal, and reuse (3rd ed).
:
McGraw-Hill.
Gaya MLA
Tchobanoglous, F., L., B., G..
Wastewater Engineering : treatment, disposal, and reuse.
3rd ed
:
McGraw-Hill,
1991.
Textbook.