1. Methodology for river-quality assessment with application to the Willamette River Basin, Oregon Author/Creator: Rickert, David A., 1940- Publication/Creation: Washington : U.S. Dept. of the Interior, Geological Survey, 1976 Resource Type: Book Access & Availability: Loading
2. Project development and data programs for assessing the quality of the Willamette River, Oregon Author/Creator: Rickert, David A., 1940- Publication/Creation: Washington : U.S. Govt. Print Off., 1976 Resource Type: Book Access & Availability: Loading
3. A practical framework for river-quality assessment Author/Creator: Rickert, David A., 1940- Publication/Creation: Reston, Va. : U.S. Geological Survey, National Center, 1975 Resource Type: Book Access & Availability: Loading
4. Real-estate lakes Author/Creator: Rickert, David A., 1940- Publication/Creation: Washington : [publisher not identified], 1971 Resource Type: Book Access & Availability: Loading