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. (Virgil Everett) and Goldich, Samuel S. and Romberg, Frederick","Iron ore in the Llano region, central Texas",,"University of Texas, Bureau of Economic Geology",1949,Report of investigations,,,,https://cir.nii.ac.jp/crid/1130282269843115648