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 Ngũgĩ wa Thiong'o,A grain of wheat,Rev. ed,Penguin Books in association with Heinemann African Writers Series,2002,Penguin classics,,9780141186993,,https://cir.nii.ac.jp/crid/1130282270046108672