Breakthrough
From Author Wars - https://authorwars.com/books/breakthrough-1649267.html
Overview:
- Title: Breakthrough
- Author: Arthur C. Clarke
- Year: 1984
- Type: Essays
Editions/Publications:
- 1987 . Frontier Crossings (1987, Arthur C. Clarke, Science Fiction Conventions Ltd., 192 pages, Hardcover, Non-fiction)