World Health Organization, Geneva, United Nations Environment Programme, & International Labour Organization. (1991). Environmental health criteria 120: partially halogenated chlorofluorocarbons (methane devivatives): IPCS International Programme on Chemical Safety. World Health Organization.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)World Health Organization, Geneva, United Nations Environment Programme, و International Labour Organization. Environmental Health Criteria 120: Partially Halogenated Chlorofluorocarbons (methane Devivatives): IPCS International Programme on Chemical Safety. Geneva: World Health Organization, 1991.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)World Health Organization, Geneva, et al. Environmental Health Criteria 120: Partially Halogenated Chlorofluorocarbons (methane Devivatives): IPCS International Programme on Chemical Safety. World Health Organization, 1991.