TY - RPRT TI - Land use and land cover and associated maps for Marion, Ohio AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1980 DO - 10.3133/ofr8054_1980 UR - https://pubs.usgs.gov/publication/ofr8054_1980 ID - ofr8054_1980 ER -