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 "Fennell, David A.",Tourism ethics,2nd ed,Channel View Publications,2018,Aspects of tourism,,"9781845416348,9781845416355",,https://cir.nii.ac.jp/crid/1130282269301027200