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
"Emenanjọ, E. Nọlue",Auxiliaries in Igbo syntax : a comparative study,,Indiana University Linguistics Club,1985,Studies in African grammatical systems,,,,https://cir.nii.ac.jp/crid/1130282272057440896