@misc{indiciaecad7e6c3fd2f, title = {U.S. Geological Survey Information Sources}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {2002}, doi = {10.3133/fs00602}, url = {https://pubs.usgs.gov/publication/fs00602}, note = {Source identifier: fs00602} }