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
"Barnes, Virgil E. and Schofield, Daniel A.","Potential low-grade iron ore and hydraulic-fracturing sand in Cambrian sandstones, northwestern Llano region, Texas",,"University of Texas, Bureau of Economic Geology",1964,Report of investigations,,,,https://cir.nii.ac.jp/crid/1130282272657580160