1. Hydrogeologic framework of the northern Atlantic Coastal Plain in parts of North Carolina, Virginia, Maryland, Delaware, New Jersey, and New York Author/Creator: Trapp, Henry, author Publication/Creation: Washington : U.S. Department of the Interior, U.S. Geological Survey, 1992 Resource Type: Book Access & Availability: Loading
2. Three-dimensional steady-state simulation of flow in the sand-and-gravel aquifer, southern Escambia County, Florida Author/Creator: Trapp, Henry, author Publication/Creation: Tallahassee, Florida : U.S. Geological Survey, 1986 Resource Type: Book Access & Availability: Loading