Não informado. Selected references on environmental quality as it relates to health. National Library of Medicine.
Citação do estilo Chicago (17ª ed.)Não informado. Selected References on Environmental Quality as It Relates to Health. Bethesda, Md: National Library of Medicine.
Citação MLA (8ª ed.)Não informado. Selected References on Environmental Quality as It Relates to Health. National Library of Medicine.
警告：這些引文格式不一定是100％准確.