Παραπομπή σε μορφή APA (7η εκδ.)

Water Environment Federation MOP 11 Task Force & Water Pollution Control Federation O and M Subcommittee. (1990). Operation of municipal wastewater treatment plants (2nd ed.). Water Pollution Control Federation.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Water Environment Federation MOP 11 Task Force και Water Pollution Control Federation O and M Subcommittee. Operation of Municipal Wastewater Treatment Plants. 2nd ed. Alexandria: Water Pollution Control Federation, 1990.

Παραπομπή σε μορφή MLA (9th εκδ.)

Water Environment Federation MOP 11 Task Force και Water Pollution Control Federation O and M Subcommittee. Operation of Municipal Wastewater Treatment Plants. 2nd ed. Water Pollution Control Federation, 1990.