Vehrenberg, Hans Atlas of deep-sky splendors / Hans Vehrenberg - 3rd ed. - West Germany : Treugesell-Verlag, 1978 - 246 p. : ill. ; 31 cm. ISBN: 0933346034 Subjects--Topical Terms: Stars--AtlasesStars--Clusters--AtlassesNebulae--AtlasesGalaxies--Atlases