@misc{indiciae0dd08790fb0c, title = {Codes for the identification of aquifer names and geologic units in the United States and the Caribbean outlying areas}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1985}, doi = {10.3133/cir878c\_1985}, url = {https://pubs.usgs.gov/publication/cir878C\_1985}, note = {Source identifier: cir878C\_1985} }