*Landis, Don (2015). ''Secrets of Ancient Man''. Green Forest, Arkansas: Master Books. ISBN: 9780890518663.
*Landis, Don (2015). ''Secrets of Ancient Man''. Green Forest, Arkansas: Master Books. ISBN: 9780890518663.
*Landis, Don (2012). ''The Genius of Ancient Man''. Green Forest, Arkansas: Master Books. ISBN: 9780890516775.
*Landis, Don (2012). ''The Genius of Ancient Man''. Green Forest, Arkansas: Master Books. ISBN: 9780890516775.
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*[[Walt Brown|Brown, Walt]] (2008). ''In the Beginning: Compelling Evidence for Creation and the Flood (8th Edition)''. Center for Scientific Creation; 8th edition (December 1, 2008). ISBN: 978-1878026095.
*[[William R. Corliss]], Anomalies in Geology: Physical, Chemical, Biological (A Catalog of Geological Anomalies), 1989. ISBN 915554-23-2
*[[William R. Corliss]], Anomalies in Geology: Physical, Chemical, Biological (A Catalog of Geological Anomalies), 1989. ISBN 915554-23-2
*William R. Corliss Neglected Geological Anomalies, 1990. ISBN 915554-24-0
*William R. Corliss Neglected Geological Anomalies, 1990. ISBN 915554-24-0