TY  - BOOK
AU  - Calder,Nigel
TI  - Comets: speculation and discovery 
SN  - 0486278794 (pbk.) :
AV  - QB721 .C34 1994
U1  - 523.6 20
PY  - 1994///
CY  - New York
PB  - Dover
KW  - Halley, Edmond,
KW  - Comets
KW  - Halley's comet
N1  - Originally published: The comet is coming. Harmondsworth, Middlesex, England ; New York, N.Y., U.S.A. : Penguin Books, 1992, c1980; Includes bibliographical references (p. 152-156) and index
ER  -