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 Massachusetts. Bureau of Statistics of Labor,"Second annual report of the Chief of the Bureau of Statistics of Labor on the State Free Employment Offices for the year ending November 30, 1908",,Wright & Potter Printing,1909,Public document,,,,https://cir.nii.ac.jp/crid/1130282272979804160