Countdown
From Author Wars - https://authorwars.com/books/countdown-115509.html
Overview:
- Title: Countdown
- Author: Isaac Asimov
- Year: 1978
- Type: Essays
- Series: Asimov's Essays: F&SF
Editions/Publications:
- Unknown. The Magazine of Fantasy and Science Fiction, September 1978 (Unknown, Isaac Asimov, Mercury Press, Inc., $1.25, 164 pages, digest, MAGAZINE)
- Unknown. The Road to Infinity (Unknown, Isaac Asimov, Doubleday, ISBN-10: 038514962X, $8.95, xix+217 pages, Hardcover, Non-fiction)
- Unknown. The Road to Infinity (Unknown, Isaac Asimov, Avon Books, ISBN-10: 0380541556, $2.75, xix+233 pages, Paperback, Non-fiction)