00459nam a2200169Ia 4500003000900000008004100009040001600050080001200066100001900078245005300097260003700150300001000187650001400197650004100211650001700252700002000269IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a52bHYN  aHynek, J Allen 0aAstronomy onecJ. Allen Hynek and Necia H. Apfel  aCaliforniabW. A. Benjaminc1972  a402p.  aAstronomy  aAstronomy and astrophysics thesaurus  aAstrophysics  aApfel, Necia H.