Παραπομπή σε μορφή APA (7η εκδ.)

Water Environment Federation Energy Conservation Task Force & Water Environment Federation Municipal Subcommittee. (1997). Energy conservation in wastewater treatment facilities. Water Environment Federation.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Water Environment Federation Energy Conservation Task Force και Water Environment Federation Municipal Subcommittee. Energy Conservation in Wastewater Treatment Facilities. Alexandria, USA: Water Environment Federation, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Water Environment Federation Energy Conservation Task Force και Water Environment Federation Municipal Subcommittee. Energy Conservation in Wastewater Treatment Facilities. Water Environment Federation, 1997.