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 "McGregor, G. P.",English in Africa : a guide to the teaching of English as a second language with particular reference to the post-primary school stages,,Heinemann,1971,Unesco source book,,0435929100,,https://cir.nii.ac.jp/crid/1130282272378555904