TY  - BOOK
AU  - Steel,Duncan
TI  - Rogue asteroids and doomsday comets : : the search for the million megaton menace that threatens life on earth 
SN  - 0471193380
U1  - 363.34 
PY  - 1995///
CY  - New York
PB  - John Wiley & Sons
KW  -  Asteroids
KW  -  Popular works.	
KW  -  Comets
KW  -  Impact 	
KW  -  Extinction (biology)
KW  - Popular works.	
N1  - Includes glossary, bibliographical references and index
ER  -