TY  - BOOK
AU  - Boyd, Robert.
AU  - Silk, Joan B.
TI  - How humans evolved
SN  - 0393926281
U1  - 599.938 
PY  - 2006///
CY  - New York: 
PB  - W.W. Norton & Company, Inc., 
KW  - Ecology
KW  - Genetics
KW  - Phylogeny
KW  - Zoology
ER  -