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. Dept. of Overseas Trade and Pyke, J.","Economic conditions in Portuguese East Africa : dated December, 1929",,H.M.S.O.,1930,Department of Overseas Trade,,,,https://cir.nii.ac.jp/crid/1130000794661804288