Stargate (Part 3 of 3)

From Author Wars - https://authorwars.com/books/stargate-part-3-of-3-193176.html

Overview:

Title: Stargate (Part 3 of 3)
Author: Tak Hallus
Year: 1974
Type: Serials

Editions/Publications:

Unknown. Analog Science Fiction/Science Fact, August 1974 (Unknown, Tak Hallus, Condé Nast, $0.75, 180 pages, digest, MAGAZINE)