@misc{indiciae9ffd8f988e52, title = {Aeromagnetic map of part of Kent County, Maryland, and parts of adjacent counties in Maryland and Delaware}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1971}, doi = {10.3133/gp756}, url = {https://pubs.usgs.gov/publication/gp756}, note = {Source identifier: gp756} }