TY  - BOOK
AU  - Macleod Norman
AU  - Keller Gerta
TI  - Cretaceous-tertiary mass extinctions : biotic and environmental changes
SN  - 0-393-96657-7
U1  - 560.45 
PY  - 1996///
CY  - New York
PB  - W W Norton
KW  - Cretaceous-tertiary Boundary
KW  - Extinction
KW  - Paleoecology
ER  -