@misc{indiciae82135770666f, title = {Natural or fertilizer-derived uranium in irrigation drainage: A case study in southeastern Colorado, U.S.A.}, author = {R. A. Zielinski and S. Asher-Bolinder and A. L. Meier and C. A. Johnson and Barney J. Szabo}, year = {1997}, doi = {10.1016/s0883-2927(96)00050-9}, url = {https://pubs.usgs.gov/publication/70020190}, note = {Source identifier: 70020190} }