00540nam a2200181Ia 4500003000900000008004100009020001800050040001600068080001500084100001600099245009200115250001200207260002900219300001400248650004100262650002600303650002900329IN-BaIIA211028s9999    xx            000 0 eng d  a0-07-015825-8  cIIA Library  a681.3bDAV  aDavis, G. B 0aintroduction to computerscG. B. Davis                                                   a3rd ed.  aTokyobMcGraw-Hillc1977  aix, 781p.  aAstronomy and astrophysics thesaurus  aExtragalactic objects  aHigh energy astrophysics