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 "Herbert, Geoffrey and Great Britain. Dept. of Overseas Trade","Report on commercial economic and financial conditions in Bulgaria, dated March, 1916",,H.M.S.O.,1926,Department of Overseas Trade,,,,https://cir.nii.ac.jp/crid/1130000796234998400