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 National Council for Educational Technology. Working Group on Rights,Copyright and education : a guide to the use of copyright material in educational institutions,,"National Council for Educational Technology,distributed by Councils and Education Press",1972,Working paper,,0900313331,,https://cir.nii.ac.jp/crid/1130000797566121600