TY  - BOOK
AU  - Blaffer Hrdy, Sarah
TI  - Mother Nature: Maternal Instincts and How They Shape The Human Species 
SN  - 0345408934
U1  - 306.874 
PY  - 1999///
CY  - New York
PB  - The Ballantine Book
KW  - Includes Bibliographical References
N1  - Includes Indexes
ER  -