@misc{indiciae3f48d0221629, title = {Land use and land cover and associated maps for Santa Ana, Calif.}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1976}, doi = {10.3133/ofr76114}, url = {https://pubs.usgs.gov/publication/ofr76114}, note = {Source identifier: ofr76114} }