@misc{indiciae9016c0276556, title = {Research, investigations, and technical developments; National Mapping Program 1983-84}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1985}, doi = {10.3133/ofr85304}, url = {https://pubs.usgs.gov/publication/ofr85304}, note = {Source identifier: ofr85304} }