TY  - BOOK
AU  - Halpern Paul
TI  - Countdown to Apocalypse: asteroids, tidal waves, and the end of the world 
SN  - 0306459868
AV  - QB638.8 
U1  - 001.9 
PY  - 1998///
CY  - New York
PB  - Plenum Trade
KW  - End of the world Astronomy
N1  - Includes bibliographical references (p. 277-281) and index
ER  -