Il marchio dell'invisibile
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Overview:
- Title: Il marchio dell'invisibile
- Author: Robert Silverberg
- Year: 1964
- Type: Short Fiction
Editions/Publications:
- Unknown. Il passo dell'ignoto (Unknown, Robert Silverberg, Mondadori, xii+636 pages, Hardcover, Anthology)
- 1964 . Urania #336 (1964, Robert Silverberg, Mondadori, Lit 200, 128 pages, digest, MAGAZINE)
- 1979 . Buone notizie dal Vaticano (1979, Robert Silverberg, Mondadori, Lit 1,800, 176 pages, Paperback, Collection)