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 Los Angeles City School Districts Curriculum Division and Los Angeles County Schools Division of Secondary Education,Human relations in American economic life : a teaching unit,,A joint publication of Los Angeles County Schools and the Los Angeles City Shools,1949,Curriculum Division publication,,,,https://cir.nii.ac.jp/crid/1130000796307211776