TY - RPRT TI - Implications of the fluvial history of the Wacheqsa River for hydrologic engineering and water use at ChavĂ­n de HĂșntar, Peru AU - Daniel A. Contreras AU - David K. Keefer PY - 2009 DO - 10.1002/gea.20279 UR - https://pubs.usgs.gov/publication/70036851 ID - 70036851 ER -