http://www.helium.com/knowledge/27888-book-reviews-lost-civilizations-of-the-stone-age-by-richard-rudgley.xml Helium.com > Ancient History > Book reviews: Lost Civilizations of the Stone Age, by Richard Rudgley en-us Copyright Helium.com Mon, 05 May 2008 19:39:55 GMT Mon, 05 May 2008 19:39:55 GMT