Homeland Security National Risk CharacterizationHenry H. Willis, Mary Tighe, Andrew Lauland, Liisa Ecola, Shoshana R. Shelton, Meagan L. Smith, John G. Rivers, Kristin J. Leuschner, Terry Marsh, Daniel M. Gerstein · First published 2018Open the Tome
Non-marine sequence stratigraphy of the Sego Sandstone and Upper Castlegate Sandstone (Upper Cretaceous), Book Cliffs, Utah, U.S.AAndrew John Willis · First published 1997Open the Tome
Sedimentary and stratigraphic framework of the Middle Triassic Halfway Formation, Wembley oilfield, AlbertaAndrew John Willis, University of Alberta. Dept. of Geology · First published 1992Open the Tome
