WASTEWATER TREATMENT. (2004). Wastewater treatment technologies and environment vol.1. Daya Publishing House.
Chicago-referens (17:e uppl.)WASTEWATER TREATMENT. Wastewater Treatment Technologies and Environment Vol.1. Delhi: Daya Publishing House, 2004.
MLA-referens (9:e uppl.)WASTEWATER TREATMENT. Wastewater Treatment Technologies and Environment Vol.1. Daya Publishing House, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.