Não informado. (1991). Environmental Toxicology and Water Quality. John Wiley & Sons.
Chicago-referens (17:e uppl.)Não informado. Environmental Toxicology and Water Quality. New York: John Wiley & Sons, 1991.
MLA-referens (8:e uppl.)Não informado. Environmental Toxicology and Water Quality. John Wiley & Sons, 1991.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.