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 "Singh, Tejvir",Challenges in tourism research,,Channel View Publications,2015,Aspects of tourism,,"9781845415327,9781845415334",,https://cir.nii.ac.jp/crid/1130000796198280832