TY  - BOOK
AU  - Schaaf,Fred
TI  - Comet of the century: from Halley to Hale-Bopp 
SN  - 0387947930 (acidfree paper)
AV  - QB721 .S365 1997
U1  - 523.6 20
PY  - 1997///
CY  - New York
PB  - Springer-Verlag
KW  - Comets
N1  - Includes bibliographical references (p. 367-370) and indexes
ER  -