1. The quality of ground water in the principal aquifers of northeastern-north central Washington Author/Creator: Ebbert, J. C., author Publication/Creation: Tacoma, Washington : U.S. Geological Survey, 1984 Resource Type: Book Access & Availability: Loading
2. The quality of ground water in the principal aquifers of southwestern Washington Author/Creator: Ebbert, J. C., author Publication/Creation: Tacoma, Washington : U.S. Geological Survey, 1985 Resource Type: Book Access & Availability: Loading