Astrometric observations of comets and asteroids and subsequent orbital investigations
Subtitle: final report.
Contributors: United States. National Aeronautics and Space Administration.
Series: NASA CR -- 185446.; NASA contractor report -- NASA CR-185446.
Publisher: National Aeronautics and Space Administration
Published: 1989
Place of publication: [Washington, D.C.?
Language: eng
Format: Microform
Subjects: Comets.; Asteroids.
Notes: Distributed to depository libraries in microfiche.

Microfiche. [Washington, D.C.? : National Aeronautics and Space Administration], 1989. 1 microfiche ; 11 x 15 cm.