World Health Organization, WHO Study Group on Tobacco Product Regulation, & ebrary, Inc. (2007). Scientific basis of tobacco product regulation: Report of a WHO study group. World Health Organization.
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Dyfyniad Arddull Chicago
World Health Organization, WHO Study Group on Tobacco Product Regulation, and Inc ebrary. Scientific Basis of Tobacco Product Regulation: Report of a WHO Study Group. Geneva: World Health Organization, 2007.
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Dyfyniad MLA
World Health Organization, et al. Scientific Basis of Tobacco Product Regulation: Report of a WHO Study Group. World Health Organization, 2007.
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Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.