A catalog of visual binary orbits.
Series: Publications of the United States Naval Observatory -- 2d ser. v. 18, pt. 3
Publisher: U.S. Govt. Print. Off.
Published: 1964
Place of publication: [Washington
Language: eng
Number of pages: 74
Subjects: Double stars -- Orbits.; Double stars -- Catalogs.
Genres: Catalogs.
Notes: Bibliography: p. 10. Bibliographical references included in "Notes" (p. 70-74)