Minions of Mars (Part 4 of 5)

From Author Wars - https://authorwars.com/books/minions-of-mars-part-4-of-5-1264831.html

Overview:

Title: Minions of Mars (Part 4 of 5)
Author: William Gray Beyer
Year: 1940
Type: Serials

Editions/Publications:

1940 . Argosy, February 3, 1940 (1940, William Gray Beyer, Frank A. Munsey, $0.10, unknown, MAGAZINE)