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 "Akat, Ömer",A comprehensive and comparative study of strategies for international tourism and its marketing with special reference to Turkey,,Supplied by the British Library Document Supply Centre,1982,British thesis service,,,,https://cir.nii.ac.jp/crid/1130282270472622208