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 Illinois. Office of the Superintendent of Public Instruction,Curriculum and course of study guide for elementary schools of Illinois,,V.L. Nickell : Superintendent of Public Instruction,1946,Circular series A,,,,https://cir.nii.ac.jp/crid/1130000794401732992