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
"Great Britain. Board of Trade. Commercial Relations and Export Department and Smith, R. H. Tottenham and Eves, A. W. D.",El Salvador : economic and commercial conditions in El Salvador,,"Published for the Commercial Relations and Exports Dept., Board of Trade, by H.M.S.O.",1951,Overseas economic surveys,,,,https://cir.nii.ac.jp/crid/1130000795331572352