Perpetuum Mobile
From Author Wars - https://authorwars.com/books/perpetuum-mobile-1872854.html
Overview:
- Title: Perpetuum Mobile
- Author: L. Sprague de Camp
- Year: 1991
- Type: Short Fiction
Editions/Publications:
- Unknown. Die Kontinente-Macher (Unknown, L. Sprague de Camp, Heyne, ISBN-10: 3453055721, DM 9.80, 267 pages, Paperback, Collection)