Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
International Association of Industrial Accident Boards and Commissions. Meeting and United States. Bureau of Labor Statistics,"Proceedings of the Sixth Annual Meeting of the International Association of Industrial Accident Boards and Commissions, held at Toronto, Canada, September 23-26, 1919",,G.P.O.,1920,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282271092445312