TY  - BOOK
AU  - Sagan, Carl
AU  - Druyan, Ann
TI  - Shadows of forgotten ancestors: a search for who we are
SN  - 0345384725
PY  - 1993///
CY  - USA
PB  - Random house
KW  - Evolution (Biology)
KW  - Life--Origin
KW  - Human evolution
KW  - Social evolution
ER  -