| Description: | Fiction in English, 1900-. Texts (BNB/PRECIS) 'The ballad of Beta-2' originally published: New York : Ace Books, 1965. 'Empire Star' originally published: New York : Ace Books, 1966. |
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| Description matérielle: | 176 p. ; 21cm. |
| ISBN: | 0709167555 : |