Original: Bahn, Paul (1996) "The atlas of world archeology" Copyright 2000 The Brown Reference Group PLC Example societies are the Lepenski Vir as well as some contemporary hunter-gatherers such as the Tlingit.
Simplified: ISBN 0-13-357005-3 Bahn, Paul (1996) "The atlas of world archeology" Copyright 2000 The Brown Reference Group PLC Other websites Early Voices: The Leap to Language by Nicolas Wade "Human Evolution," Microsoft® Encarta® Online Encyclopedia 2007 © 1997-2007 Microsoft Corporation.