@misc{indiciae9762013988f6, title = {Publications of the U.S. Geological Survey, 1987}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1988}, doi = {10.3133/70043721}, url = {https://pubs.usgs.gov/publication/70043721}, note = {Source identifier: 70043721} }