@article{219598, author = {Helgesen, John O.}, url = {http://library.usi.edu/record/219598}, title = {Surface-water-quality assessment of the lower Kansas River Basin, Kansas and Nebraska : results of investigations, 1987-90 /}, publisher = {U.S. Geological Survey ;}, recid = {219598}, pages = {viii, 129 p. :}, address = {Lawrence, Kan. :}, year = {1995}, }