00653nam0-22002411i-450-990001126500403321000112650FED01000112650(Aleph)000112650FED01000112650--------d--------km-y0itay50------baengGaseous nebulaeby Aller.LondonChapman & Hall1956<<The >>International Astrophysics SeriesAller,Lawrence H.51694ITUNINARICAUNIMARCBK990001126500403321204-C-222898MA1MA1Gaseous nebulae345019UNINA