Introduction (In the Days of the Comet)
From Author Wars - https://authorwars.com/books/introduction-in-the-days-of-the-comet-837146.html
Editions/Publications:
- Unknown. In the Days of the Comet (Unknown, Ben Bova, Bison Books, ISBN-10: 0803298250, $11.95, xiii+221 pages, Trade Paperback, Novel)