Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Fay, Albert Hill","Coal-mine fatalities in the United States, 1870-1914 : with statistics of coal production,labor, and mining methods, by states and calendar years",,Govt. print. off.,1916,Bulletin,,,,https://cir.nii.ac.jp/crid/1130282271743481856