TY  - BOOK
AU  - Burger,William C.
TI  - Perfect planet, clever species: how unique are we? 
SN  - 1591020166 (alk. paper)
U1  - 599.93 
PY  - 2003///
CY  - Amherst, N.Y.
PB  - Prometheus Books
KW  - Human evolution
KW  - Life on other planets
KW  - Exobiology
KW  - Evolución Humana
KW  - Vida sobre otros planetas
KW  - Exobiología
N1  - Includes bibliographical references (p. 295-328) and index
ER  -