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
"Njoku, John E. Eberegbulam","The Igbos of Nigeria : ancient rites, changes, and survival",,E. Mellen Press,1990,African studies,,0889461732,,https://cir.nii.ac.jp/crid/1130282271837454208