[ نُشرت في: Pollution ]
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الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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The state of transboundary air pollution: 1989 update
1990
Food and Agriculture Organization of the United Nations - Italy
The state of transboundary air pollution: 1989 update. Report prepared within the framework of the Convention on Long-Range Transboundary Air Pollution.
1990
Wolters Kluwer - United States of America
[The state of transboundary air pollution: 1989 update]
1991
Food and Agriculture Organization of the United Nations - Italy
L' etat de la pollution atmospherique transfrontiere: mise a jour 1989.
1991
Wolters Kluwer - United States of America