@misc{indiciae5423e6fc3929, title = {National Cartographic Information Center Newsletter No. 3}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1975}, doi = {10.3133/70039590}, url = {https://pubs.usgs.gov/publication/70039590}, note = {Source identifier: 70039590} }