TY - RPRT TI - Nitrate and other water-quality characteristics, and nitrogen in the unsaturated zone, in the Red Willow and Hitchcock counties Special Protection Area, southwest Nebraska, 1993-95 AU - G. V. Steele PY - 1998 DO - 10.3133/wri984138 UR - https://pubs.usgs.gov/publication/wri984138 ID - wri984138 ER -