World Health Organization, Geneva. (2006). Concise international chemical assessment document (CICAD) 68: Tetrachloroethene. World Health Organization.
Chicago-viite (17. p.)World Health Organization, Geneva. Concise International Chemical Assessment Document (CICAD) 68: Tetrachloroethene. Geneva: World Health Organization, 2006.
MLA-viite (8. p.)World Health Organization, Geneva. Concise International Chemical Assessment Document (CICAD) 68: Tetrachloroethene. World Health Organization, 2006.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.