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
"Nwoga, Donatus Ibe",Critical perspectives on Christopher Okigbo,,Three Continents Press,1984,Critical perspectives,,"0894102591,0894102583",,https://cir.nii.ac.jp/crid/1130282270242772864