Petroglyphs of the Kansas Smoky Hills Autor Rex Buchanan et al. 17 sep 2019 Hardback Preț: 321.97 lei 3-5 săpt.
Kansas Geology: An Introduction to Landscapes, Rocks, Minerals, and Fossils Editat de Rex Buchanan 30 apr 2010 Paperback Preț: 145.45 lei 3-5 săpt.