TY  - BOOK
AU  - Erwin,Douglas H.
TI  - Extinction: how life on earth nearly ended 250 million years ago
SN  - 9780691136288
U1  - 575.7 
PY  - 2008///
CY  - Princeton
PB  - Princeton Univ.Press
KW  - Extinction (Biology)-history
KW  - Catastrophes (Geology)
N1  - Includes bibliographical references and index
ER  -