TY  - BOOK
AU  - Yeomans,Donald K.
TI  - The Comet Halley handbook: an observer's guide 
AV  - QB723.H2 Y46 1983
U1  - 523.6 19
PY  - 1983///
CY  - Pasadena, Calif.
PB  - NASA, Jet Propulsion Laboratory, California Institute of Technology
KW  - Halley's comet
KW  - Observers' manuals
N1  - "May 15, 1983."; Includes bibliographical references
ER  -