Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
World Tourism Organization,Tourism market trends,,World Tourism Organization,2000,,,"9284403537,9284403553,9284403588,928440360X,9284403618,9284403626,9284404290,9284404312,9284404339,9284404355,9284404363,928440553X,9284405580,9284405513,9284405548,9284405564,928440648X,9284406498,928440651X,9284406447,9284406463,9284408024,9284407958,9284407974,9284408008,9284407990,9284411122,928441105X,9284411076,9284411106,9284411092,9789284412204,9789284412136,9789284412150,9789284412181,9789284412174,9789284412983,9789284412914,9789284412938,9789284412969,9789284412952",,https://cir.nii.ac.jp/crid/1130282269874996864