Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Breckenridge, L. P. and Kreisinger, Henry and Ray, Walter T.","Steaming tests of coals and related investigations : September 1, 1904, to December 31, 1908",,G.P.O.,1912,Bulletin,,,,https://cir.nii.ac.jp/crid/1130000794822783104