@misc{indiciae776ec6c84602, title = {Construction materials in Norton County, Kansas}, author = {F.E. Byrne and H.V. Beck and C.H. Bearman}, year = {1948}, doi = {10.3133/ofr4815e}, url = {https://pubs.usgs.gov/publication/ofr4815E}, note = {Source identifier: ofr4815E} }