Não informado. Selected references on environmental quality as it relates to health. National Library of Medicine.
Chicago-Zitierstil (17. Ausg.)Não informado. Selected References on Environmental Quality as It Relates to Health. Bethesda, Md: National Library of Medicine.
MLA-Zitierstil (8. Ausg.)Não informado. Selected References on Environmental Quality as It Relates to Health. National Library of Medicine.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.