Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Dublin, Louis I. and United States. Bureau of Labor Statistics and Metropolitan Life Insurance Company","Causes of death by occupation : occupational mortality experience of the Metropolitan Life Insurance Company, Industrial Department, 1911-1913",,G.P.O.,1917,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000797266241408