TY - RPRT TI - Upper Klamath Lake Basin nutrient-loading study: Assessment of historic flows in the Williamson and Sprague rivers AU - John C. Risley AU - Antonius Laenen PY - 1999 DO - 10.3133/wri984198 UR - https://pubs.usgs.gov/publication/wri984198 ID - wri984198 ER -