1. Base-flow frequency characteristics of selected Pennsylvania streams Author/Creator: White, Kirk E., author Publication/Creation: Harrisburg, Pennsylvania : U.S. Geological Survey, 1990 Resource Type: Book Access & Availability: Loading
2. Bacteriological quality of ground water used for household supply, lower Susquehanna River Basin, Pennsylvania and Maryland Author/Creator: Bickford, Tammy M., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Department of the Interior, U.S. Geological Survey, 1996 Resource Type: Book Access & Availability: Loading