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
"Willén, Birgitta",Distance education at Swedish universities : an evaluation of the experimental programme and a follow-up study,,"S. Academiae Ubsaliensis,Distributor, Almqvist & Wiksell International",1981,Acta Universitatis Upsaliensis,,9155412289,,https://cir.nii.ac.jp/crid/1130000795273786752