TY  - BOOK
AU  - Boyd, Robert.
AU  - Silk, Joan B.
TI  - How humans evolved
SN  - 0393970760
U1  - 599.938 BOY 23
PY  - 1997///
CY  - New York : 
PB  - W.W. Norton
KW  - Human evolution
KW  - Evolution
N1  - Includes index
ER  -