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 "Mocker, Donald W. and Spear, George E.","Lifelong learning : formal, nonformal, informal, and self-directed",,"ERIC Clearinghouse on Adult, Career, and Vocational Education : National Center for Research in Vocational Education, Ohio State University",1982,Information series,,,,https://cir.nii.ac.jp/crid/1130282273353755136