Quaternary and Late Pliocene Geology of the Death Valley Region Recent Observations on Tectonics, Stratigraphy, and Lake Cycles: Guidebook for the 2001 Pacific Friends of the Pleistocene Fieldtrip: Usgs Open-File Report 2001-51 (Paperback) by MichaelN. Machette Paperback, Published 2013 by Bibliogov, United States ISBN-13: 978-1-288-82149-5, ISBN: 1-288-82149-2
Sea of Sand A History of Great Sand Dunes National Park and Preserve by Michael M. Geary 296 Pages, Published 2016 by University Of Oklahoma Press ISBN-13: 978-0-8061-5482-4, ISBN: 0-8061-5482-9
Quaternary and Late Pliocene Geology of the Death Valley Region Recent Observations on Tectonics, Stratigraphy, and Lake Cycles: Guidebook for the 2001 Pacific Friends of the Pleistocene Fieldtrip: Usgs Open-File Report 2001-51 - Scholar s Choice Edition (Paperback) by MichaelN. Machette , Et Al. Paperback, 258 Pages, Published 2015 by Scholar's Choice ISBN-13: 978-1-297-05179-1, ISBN: 1-297-05179-3