TY  - BOOK
AU  - Lewis,John S.
TI  - Rain of iron and ice: the very real threat of comet and asteroid bombardment 
T2  - Helix books
SN  - 0201489503
U1  - 551.3/97 20
PY  - 1996///
CY  - Reading, Mass.
PB  - Addison-Wesley Pub. Co.
KW  - Comets
KW  - Environmental aspects
KW  - Asteroids
KW  - Impact
N1  - Includes bibliographical references (p. 223) and index
ER  -