ToughMichael Bracken, J. D. Graves, Tom Barlow, Matthew Lyons, S. A. Cosby, Court Merrigan, Richard Prosch, J. M. Taylor, Mark Rapacz, Tom Andes, Nelson Stanley, Matt Phillips, Chris McGinley, Doungjai Gam · First published 2018Open the Tome
Interpretation of planar structure in drill-hole coreMark S. Lyons · First published 1964Open the Tome