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
"Institut für Planungskybernetik, Marktforschung, Marketingplanung und Erfolgskontrolle im Tourismus and Commission of the European Communities. Directorate-General XXIII. Tourism unit",Tourism customers in Central and Eastern Europe : perspectives of development,,Office for Official Publications of the European Communities,1994,Studies,,9282665038,,https://cir.nii.ac.jp/crid/1130282270694022656