APA (7th ed.) Citation

Water Envorinment Federation (WEF). (1996). Operation of municipal wastewater treatment plants (5th. edición.). WEF.

Chicago Style (17th ed.) Citation

Water Envorinment Federation (WEF). Operation of Municipal Wastewater Treatment Plants. 5th. edición. Alexandria (USA): WEF, 1996.

MLA (9th ed.) Citation

Water Envorinment Federation (WEF). Operation of Municipal Wastewater Treatment Plants. 5th. edición. WEF, 1996.

Warning: These citations may not always be 100% accurate.