TY - RPRT TI - An assessment of the collection and analysis of hydrologic data by private contractors for the US Geological Survey AU - F. A. Kilpatrick AU - Alberto Condes de la Torre AU - R. D. Hutchinson PY - 1983 DO - 10.3133/wri834104 UR - https://pubs.usgs.gov/publication/wri834104 ID - wri834104 ER -