Title: Report on active and planned spacecraft and experiments.
Authors: National Space Science Data Center.; World Data Center A for Rockets and Satellites.
Publisher: National Space Science Data Center (NSSDC)/World Data Center A for Rockets and Satellites (WDC-A-R & S), National Aeronautics and Space Administration,
Year: 1974
Subjects: Astronomy Research United States Periodicals.; Artificial satellites Periodicals.; Astronautics Research United States Periodicals.