TY  - BOOK
AU  - Sagan, Carl 
AU  - Druyan, Ann
TI  - Shadows of forgotten ancestors : : a search for who we are
SN  - 9780345384720
U1  - 304.5 
PY  - 1992///
CY  - New York
PB  - Ballantine
KW  - Evolution (Biology)
KW  - Life--Origin
KW  - Human evolution
ER  -