Installation, tests, and initial performance of the 61-inch astrometric reflector
By: by A. A. Hoag [and others.
Contributors: Hoag, Arthur Allen, 1921-
Series: Publications of the United States Naval Observatory ;; 2d ser., v. 20, pt. 2
Publisher: U.S. Govt. Print. Off.
Published: 1967
Place of publication: Washington
Language: eng
Number of pages: 34
Subjects: Reflecting telescopes
Notes: Bibliography: p. 34.