TY  - BOOK
AU  - Levy,David H.
TI  - Comets: creators and destroyers 
SN  - 0684852551 (pbk.) :
AV  - QB721 .L38 1998
PY  - 1998///
CY  - New York, NY
PB  - Simon & Schuster
KW  - Comets
N1  - "A Touchstone book."; Includes bibliographical references (p. [239]-243) and index
N2  - A foremost expert on comets presents an accessible guide to the history of this fascinating subject--as well as stunning speculations on how their possible future may change life on Earth forever. 40 photos. Line drawings
ER  -