TY  - BOOK
T1  - Nemesis :the death-star and other theories of mass extinction /
DA  - 1985.
CY  - New York :
AU  - Goldsmith, Donald.
CN  - QB44.2 .G65 1985
CN  - QB44.2
PB  - Walker,
PP  - New York :
PY  - 1985.
N1  - Includes index.
ID  - 110209
KW  - Astronomy
KW  - Comets
KW  - Extinction (Biology)
SN  - 0802708722:
TI  - Nemesis :the death-star and other theories of mass extinction /
ER  -