Two Complete Science-Adventure Books, Winter 1950 (cover)
From Author Wars - https://authorwars.com/books/two-complete-science-adventure-books-winter-1950-cover-1484155.html
Overview:
Editions/Publications:
- Unknown. Art of Imagination: 20th Century Visions of Science Fiction, Horror, and Fantasy (Unknown, Anderson, Collectors Press, ISBN-10: 1888054727, $99.95, 768 pages, Hardcover, Omnibus)
- Unknown. Science Fiction of the 20th Century: An Illustrated History (Unknown, Anderson, Collectors Press, ISBN-10: 1888054298, $59.95, 256 pages, Hardcover, Non-fiction)