TY  - BOOK
AU  - Whipple,Fred L
TI  - The nystery of comets
SN  - 0521324408 :
U1  -  523.6 
PY  - 1985///
CY  - London
PB  - Cambridge University Press
KW  - Comets
KW  - Meteors
N1  - Includes index
ER  -