Critical Threshold
From Author Wars - https://authorwars.com/books/critical-threshold-556789.html
Overview:
- Title: Critical Threshold
- Author: Douglas Beekman
- Year: 1977
- Type: Cover Art
Editions/Publications:
- Unknown. Critical Threshold (Unknown, Douglas Beekman, DAW Books, ISBN-10: 0879972823, $1.25, 160 pages, Paperback, Novel)
- Unknown. Critical Threshold (Unknown, Douglas Beekman, DAW Books / New American Library of Canada, ISBN-10: 0879972823, C$1.25, 160 pages, Paperback, Novel)