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Editions
3 editions- Hardcover · EnglishUltimate Threshold SfFunk Wagnalls Publishing Co · 9780308184787
- Other · English · 1978Penguin · 9780140048735
- Other · English · 1970Holt, Rinehart and Winston · 244 pages · 9780030818479
Russian Science fictionTranslations into EnglishScience fiction, russianFiction, science fiction, general
