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 Beritelli, Pietro",Productivity in tourism : fundamentals and concepts for achieving growth and competitiveness,,E. Schmidt,2007,International tourism research and concepts,,9783503103430,,https://cir.nii.ac.jp/crid/1130000798322975104