00861nam0-22003371i-450-9900009951904033210-442-22444-3000099519FED01000099519(Aleph)000099519FED0100009951920000920d1976----km-y0itay50------baengAstronomyLaurence W. Fredrick, Robert H. Baker10th ed.New York [etc.]Van Nostrand1976AstronomiaAstrofisicaCosmologia520523Fredrick,Laurence W.46932Baker,Robert HoraceITUNINARICAUNIMARCBK99000099519040332119-066.00111455FI1FI1Astronomy354168UNINAING01