The Mechanical Monarch / Twice Upon a Time
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Overview:
- Title: The Mechanical Monarch / Twice Upon a Time
- Author: E. C. Tubb Charles L. Fontenay
- Year: 1958
- Type: Omnibuses
Editions/Publications:
- Unknown. The Mechanical Monarch / Twice Upon a Time (Unknown, E. C. Tubb, Ace Books, $0.35, 167+152 pages, dos, Omnibus)
- Unknown. The Mechanical Monarch / Twice Upon a Time (Unknown, Charles L. Fontenay, Ace Books, $0.35, 167+152 pages, dos, Omnibus)