@misc{indiciaeb77a787de2fc, title = {Water Resources Data for Colorado, 1970; Part 2. Water Quality Records}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1971}, doi = {10.3133/wdrco702}, url = {https://pubs.usgs.gov/publication/wdrCO702}, note = {Source identifier: wdrCO702} }