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 "Scovel, Thomas",A Time to speak : a psycholinguistic inquiry into the critical period for human speech,,Newbury House,1988,Series on issues in second language research,,0066325323,,https://cir.nii.ac.jp/crid/1130282270540366208