@misc{indiciae5efca7d4f464, title = {Trends in groundwater levels in wells in the active management areas of Arizona, USA}, author = {Fred D. Tillman and Stanley A. Leake}, year = {2010}, doi = {10.1007/s10040-010-0603-3}, url = {https://pubs.usgs.gov/publication/70216852}, note = {Source identifier: 70216852} }