proceedings of the International Astronomical Union Colloquium no.112, held 13 to 16 August 1989 in Washington, DC International Astronomical Union Colloquium Washington, DC 1989 Aug. 13-16 creator Crawford, David L., ed. International Astronomical Union text xx San Francisco Astronomical Society of the Pacific 1991 9999 monographic eng

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xiv, 331p. edited by David L. Crawford Astronomy and Astrophysics Thesaurus Light pollution Radio interference Space debris 082.2:52 ASP-17 0-937797-36-8 211028