The Encyclopedia Of Earth ; a complete visual guideMichael Allaby, Robert R. Coenraads · First published 2008Open the Tome
Rocks, Fossils and DinosaursDavid Roots, Robert R. Coenraads, Christopher A. Brochu, Colin McHenry, John Long, John D. Scanlon · First published 2002Open the Tome
Rocks and FossilsArthur Bresnahan Busbey, Robert R. Coenraads, David Roots, Paul Willis · First published 2000Open the Tome
