1. A feasibility study to estimate minimum surface-casing depths of oil and gas wells to prevent ground-water contamination in four areas of western Pennsylvania Author/Creator: Buckwalter, Theodore F., author Publication/Creation: Lemoyne, Pennsylvania : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading
2. Filtration of water-sediment samples for the determination of organic compounds Author/Creator: Sandstrom, Mark W. (Mark William), author Publication/Creation: Denver, Colorado : U.S. Geological Survey, 1995 Resource Type: Book Access & Availability: Loading