@misc{indiciae7134c2966725, title = {Water-quality data-collection activities in Colorado and Ohio; Phase I, Inventory and evaluation of 1984 programs and costs}, author = {Janet Hren and Thomas H. Chaney and J. Michael Norris and Carolyn J. Oblinger Childress}, year = {1985}, doi = {10.3133/ofr85574}, url = {https://pubs.usgs.gov/publication/ofr85574}, note = {Source identifier: ofr85574} }