For Your Information: No Longer Imaginary
From Author Wars - https://authorwars.com/books/for-your-information-no-longer-imaginary-116410.html
Overview:
Editions/Publications:
- Unknown. Galaxy Science Fiction, November 1956 (Unknown, Willy Ley, Galaxy Publishing Corporation, $0.35, 148 pages, digest, MAGAZINE)
- Unknown. Galaxy Science Fiction [UK], No. 46 (Unknown, Willy Ley, Strato Publications, 2/-, 132 pages, digest, MAGAZINE)