Não informado. Who food additives series. World Health Organization.
Chicago-viite (17. p.)Não informado. Who Food Additives Series. Geneve, Suíça: World Health Organization.
MLA-viite (8. p.)Não informado. Who Food Additives Series. World Health Organization.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.