TY  - BOOK
AU  - Whipple,Fred Lawrence
AU  - Green,Daniel W.E.
TI  - The mystery of comets
SN  - 0874749689
AV  - QB721.4 .W47 1985
U1  - 523.6 19
PY  - 1985///
CY  - Washington, D.C.
PB  - Smithsonian Institution Press
KW  - Comets
KW  - Popular works
N1  - Includes index; Bibliography: p. 266-267
ER  -