TY  - BOOK
AU  - Clark,Grahame
AU  - Piggott, Stuart
TI  - Prehistoric societies
T2  - The History of human society 
U1  - 913.031  
PY  - 1965///
CY  - New York
PB  - Knopf
KW  - Prehistoric peoples.
N1  - Bibliography: p. [333]-340.
ER  -