TY  - BOOK
ED  - K-TEC Group.
ED  - National Museum of Natural Sciences (Canada).
ED  - Herzberg Institute of Astrophysics.
ED  - National Research Council Canada.
TI  - Cretaceous-Tertiary extinctions and possible terrestrial and extraterrestrial causes: proceedings of the workshop held in Ottawa, Canada, 16-17 November, 1976 
AV  - QE734 .K17
U1  - 560/.1/766 19
PY  - 1977///]
CY  - Ottawa
PB  - National Museums of Canada
KW  - Paleontology
KW  - Cretaceous
KW  - Congresses
KW  - Tertiary
KW  - Cretaceous-Tertiary boundary
KW  - Extinction (Biology)
KW  - Geophysics
KW  - Supernovae
N1  - "NRCC 15790."; Includes bibliographies
ER  -