1. The geology of Pennsylvania / edited by Charles H. Shultz. Harrisburg, Pa. : Pennsylvania Geological Survey ; Pittsburgh, Pa. : Pittsburgh Geological Society, 1999. Book Loading...Lewis Library - Stacks » QE157 .S632 vol.1Loading...Lewis Library - Remote Storage (ReCAP): Lewis Library Use Only » QE157 .S632 vol.1View Record for Full Availability Bookmark