TY - RPRT TI - User guide to Exploration and Graphics for RivEr Trends (EGRET) and dataRetrieval: R packages for hydrologic data AU - Robert M. Hirsch AU - Laura A. De Cicco PY - 2015 DO - 10.3133/tm4a10 UR - https://pubs.usgs.gov/publication/tm4A10 ID - tm4A10 ER -