GeoScienceWorld eBooks This link opens in a new windowThe GeoScienceWorld eBooks database is a comprehensive resource for researchers in the Earth Sciences; the publishers include: American Association of Petroleum Geologists, Canadian Science Publishing, Clay Minerals Society, Geological Society of America, Mineralogical Society of Great Britain and Ireland, PSAAPG, SEPM Society for Sedimentary Geology, Society of Economic Geologists, and University of Wyoming.