TY  - BOOK
AU  - Verschuur,Gerrit L.
ED  - ebrary, Inc.
TI  - Impact!: the threat of comets and asteroids 
AV  - QB721 .V48 1996eb
U1  - 551.3/97 20
PY  - 1996///
CY  - New York
PB  - Oxford University Press
KW  - Comets
KW  - Asteroids
KW  - Impact
KW  - Evolution (Biology)
KW  - Earth
KW  - Electronic books
KW  - local
N1  - Includes bibliographical references and index; Electronic reproduction; Palo Alto, Calif.; ebrary; 2009; Available via World Wide Web; Access may be limited to ebrary affiliated libraries
UR  - http://site.ebrary.com/lib/daystar/Doc?id=10086953
ER  -