Challengers of the Unknown

From Author Wars - https://authorwars.com/books/challengers-of-the-unknown-955873.html

Overview:

Title: Challengers of the Unknown
Author: Ron Goulart
Year: 1977
Type: Novels
Series: DC Comics Metaverse

Editions/Publications:

Unknown. Challengers of the Unknown (Unknown, Ron Goulart, Dell, ISBN-10: 0440113377, $1.50, 155 pages, Paperback, Novel)
Unknown. Challengers of the Unknown (Unknown, Ron Goulart, Dell, ISBN-10: 0440113377, C$1.50, 155 pages, Paperback, Novel)