TY - RPRT TI - Regression equations to estimate seasonal flow duration, n -day high-flow frequency, and n -day low-flow frequency at sites in North Dakota using data through water year 2009 AU - Tara Williams-Sether AU - Tara A. Gross PY - 2016 DO - 10.3133/sir20155184 UR - https://pubs.usgs.gov/publication/sir20155184 ID - sir20155184 ER -