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 Great Britain. Board of Education,"School attendance and employment in agriculture : summary of returns supplied by county local education authorities of children excused from school for employment in agriculture on 31st May, 1916",,H.M.S.O.,1916,Papers by command. Cd,,,,https://cir.nii.ac.jp/crid/1130000797528951936