John Carstairs: Space Detective

From Author Wars - https://authorwars.com/books/john-carstairs-space-detective-1059468.html

Overview:

Title: John Carstairs: Space Detective
Author: uncredited
Year: 1950
Type: Reviews

Editions/Publications:

Unknown. Startling Stories, March 1950 (Unknown, uncredited, Better Publications, Inc., $0.25, 164 pages, pulp, MAGAZINE)
Unknown. Startling Stories, March 1950 (Unknown, Frank Belknap Long, Better Publications, Inc., $0.25, 164 pages, pulp, MAGAZINE)