@misc{indiciaedeb3bb6bfbf5, title = {Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Introduction}, author = {C. W. Hayes}, year = {1909}, doi = {10.3133/b380a}, url = {https://pubs.usgs.gov/publication/b380A}, note = {Source identifier: b380A} }