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
"Stell, Gerald and Yakpo, Kofi",Code-switching between structural and sociolinguistic perspectives,,De Gruyter,2015,Linguae & litterae,,9783110343540,,https://cir.nii.ac.jp/crid/1130000798305613312