TY  - BOOK
AU  - Ward,Peter D.
AU  - Brownlee,Donald
TI  - Rare earth: why complex life is uncommon in the universe 
SN  - 0387952896
PY  - 2004///
CY  - New York
PB  - Copernicus Books
KW  - Exobiology
KW  - Life on other planets
N1  - Previous ed.: Secaucus, N.J.: Copernicus, 2000; Includes bibliographical references and index
ER  -