Perpetual Motion

Overview:

• Title: Perpetual Motion
• Author: L. Sprague de Camp
• Year: 1950
• Type: Short Fiction

Editions/Publications:

• 1953. The Continent Makers and Other Tales of the Viagens (1953, L. Sprague de Camp Twayne, $2.95, 272 pages, Hardcover, Collection)
• 1971. The Continent Makers and Other Tales of the Viagens (November 1971, L. Sprague de Camp Signet, Catalog ID: #Q4825, $2.95, 255 pages, Paperback, Collection)
• 1977. The Queen of Zamba (1977, L. Sprague de Camp, Collection)

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