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 "Helmers, F. L. C. H.",Project planning and income distribution : a study with particular reference to developing countries,,H. Veenman & Zonen,1977,Mededelingen Landbouwhogeschool Wageningen,,,,https://cir.nii.ac.jp/crid/1130000796982223872