00602nam a2200181Ia 4500003000900000008004100009040001600050080001600066100002300082245011000105260003900215300001600254490005200270650004100322650002200363650001200385700002300397IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a524.75bBUR  aBurbidge, Geoffrey 0aQuasi-stellar objectscGeoffrey Burbidge and Margaret Burbidge                                             aSan FranciscobW. H. Freemanc1967  aviii, 235p.  aA series of books in astronomy and astrophysics  aAstronomy and astrophysics thesaurus  aExternal galaxies  aQuasars  aBurbidge, Margaret