Gamma-Ray Observatory.
Contributors: United States. National Aeronautics and Space Administration.
Edition: Rev. 2/91.
Series: NP -- 124.; NP (Series) -- 124.
Publisher: National Aeronautics and Space Administration
Published: 1991
Place of publication: [Washington, D.C.?]
Language: eng
Number of pages: 39
Subjects: Gamma-Ray Observatory.; Gamma ray astronomy.; Space astronomy.; Gamma rays.; Scientific satellites.
Other titles: Gamma Ray Observatory.
Notes: Cover title.

Shipping list no.: 91-0418-P.

Earlier ed. for sale by the Supt. of Docs., U.S. G.P.O.; S/N 033-000-01061-3; $3.25.