The Comet Halley handbook : an observer's guide / created for the International Halley Watch by Donald K. Yeomans ; with a contribution from Zdenek Sekanina.

viii, 44 p. :, 28 cm.

QB723 .H2 Y4 1983

Comets., Halley's comet -- Observers' manuals.

Pasadena, CA :: Jet Propulsion Laboratory NASA, California Institute of Technology,, 1983.

Book