ebrary, Inc. (2002). Biosolids applied to land: Advancing standards and practices. National Academies Press.
Chicago-referens (17:e uppl.)ebrary, Inc. Biosolids Applied to Land: Advancing Standards and Practices. Washington, D.C.: National Academies Press, 2002.
MLA-referens (9:e uppl.)ebrary, Inc. Biosolids Applied to Land: Advancing Standards and Practices. National Academies Press, 2002.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.