00564nam a2200169Ia 4500003000900000008004100009020001800050040001600068080002500084110004500109245010800154260004500262300001500307650001400322650004100336650001700377IN-BaIIA211028s9999    xx            000 0 eng d  a0-309-03334-9  cIIA Library  a52(047)"1980"bNRC-2  aUnited States. National Research Council 0aAstronomy and astrophysics for the 1980'scNational Research Council                                     aWashingtonbNational Academy Pressc1983  axxi, 441p.  aAstronomy  aAstronomy and astrophysics thesaurus  aAstrophysics