00437nam a2200157Ia 4500003000900000008004100009040001600050080001500066100001800081245004300099260003900142300001500181650001600196650002400212650004300236IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a524.5bHUB  aHubble, Edwin 4aThe realm of the nebulaecEdwin Hubble  aNew YorkbDover Publicationsc1958  axiv, 207p.  a Nebulae   a Planetary nebulae  aAstronomy and astrophysics thesaurus