'The ballad of 'Beta-2' originally published: bound with another work. New York : Ace Books, 1965. - 'Empire star' originally published: bound with another work. New York : Ace Books, 1966.
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The ballad of Beta-2 ; and, Empire star by Samuel R. Delany. ISBN 0722129084. Published by Sphere in 1977. Publication and catalogue information, links to buy online and reader comments.
