1. Primate communication and the gestural origins of language;GW Hewes;Curr Anthropol,1973
2. Toolmaking, hunting and the origin of language;A Montagu;Ann NY Acad Sci,1976
3. Tools, language and cognition in human evolution;PC Reynolds,1993
4. Culture: a human domain;R Holloway;Curr Anthropol,1969
5. The Basics of Biface Knapping in the Eastern Fluted Point Tradition: A Manual for Flintknappers and Lithic Analysts;E Callahan,1979