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
"Robertson, Ian",Portugal,4th ed,"A. & C. Black,W.W. Norton",1996,Blue guide,,"0713641347,0393314162",,https://cir.nii.ac.jp/crid/1130000796536795776