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 Sierra Leone Government,Ten-year plan of economic and social development for Sierra Leone 1962/63-1971/72,,Institute of Asian Economic Affairs,1962,Economic development and planning of 37 [39] Asian and African countries,,,,https://cir.nii.ac.jp/crid/1130000794112293120