著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL Interregional Petrochemical Symposium on the Development of the Petrochemical Industries in Developing Countries and United Nations Industrial Development Organization,"Petrochemical industries in developing countries : report of the Interregional Petrochemical Symposium on the Development of the Petrochemical Industries in Developing countries, Baku, USSR, 21-31 October 1969",,United Nations,1970,Document,,,,https://cir.nii.ac.jp/crid/1130282271601668352