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 "Fredericks, L. J. (Leo J.) and Wells, R. J. G. and Dissanayake, Bernard W.",Patterns of labour utilization and income distribution in rice double cropping system : policy implications,,"Faculty of Economics & Administration, University of Malaya",1977,Occasional papers on Malaysian socio-economic affairs,,,,https://cir.nii.ac.jp/crid/1130000796382278144