World Health Organization & World Health Organization. Chlorofluorocarbons, partially halogenated: Methane derivatives.
Chicago-viite (17. p.)World Health Organization ja World Health Organization. Chlorofluorocarbons, Partially Halogenated: Methane Derivatives.
MLA-viite (8. p.)World Health Organization ja World Health Organization. Chlorofluorocarbons, Partially Halogenated: Methane Derivatives.
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