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 "Savignon, Sandra J.",Communicative competence : theory and classroom practice : texts and contexts in second language learning,2nd ed,McGraw-Hill,1997,The McGraw-Hill second language professional series,,9780070837362,,https://cir.nii.ac.jp/crid/1130000796317146112