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
"Enekwe, Ossie Onuora",Igbo masks : the oneness of ritual and theatre,,"Dept. of Culture, Federal Ministry of Information and Culture",1987,A Nigeria magazine publication,,9781730404,,https://cir.nii.ac.jp/crid/1130282269099180928