Oort-cloud and Kuiper-belt comets
By: by Fred L. Whipple
Publisher: Smithsonian Astrophysical Observatory
Published: 1998
Place of publication: Cambridge, Mass
Language: eng
Number of pages: 18
Subjects: Comets
Notes: Title from cover.

"August 1998."

"NASA Grant NAG5-3780, final report for the period 01 November 1997 through 28 February 1998."

"Prepared for: National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, Maryland 20771."

Includes bibliographical references (p. 10).