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
"Keller, Peter and Bieger, Thomas and Aho, Seppo",Marketing efficiency in tourism : coping with volatile demand,,Erich Schmidt,2006,International tourism research and concepts,,3503097244,,https://cir.nii.ac.jp/crid/1130282270022416640