APA-referens (7:e uppl.)

(2001). Microorganisms in activated sludge and biofilm processes: 3rd IWA International specialised conference (13-15 june 2001, Rome).

Chicago-referens (17:e uppl.)

Microorganisms in Activated Sludge and Biofilm Processes: 3rd IWA International Specialised Conference (13-15 June 2001, Rome). 2001.

MLA-referens (9:e uppl.)

Microorganisms in Activated Sludge and Biofilm Processes: 3rd IWA International Specialised Conference (13-15 June 2001, Rome). 2001.

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.