TY - RPRT TI - Evaluation of sampling methods used to estimate irrigation pumpage in Chase, Dundy, and Perkins counties, Nebraska AU - F.J. Heimes AU - R. R. Luckey AU - D.M. Stephens PY - 1986 DO - 10.3133/wri864092 UR - https://pubs.usgs.gov/publication/wri864092 ID - wri864092 ER -