TY  - BOOK
AU  - Erwin, Douglas H.,
CN  - QE730
CN  - QE730
CY  - New York :
DA  - c1993.
ID  - 150602
KW  - Paleontology
KW  - Extinction (Biology)
PB  - Columbia University Press,
PP  - New York :
PY  - c1993.
SN  - 0231074670 (pbk. : alk. paper)
SN  - 0231074662 (alk. paper)
T1  - The great Paleozoic crisis :life and death in the Permian /
TI  - The great Paleozoic crisis :life and death in the Permian /
ER  -