Encroachment

From Author Wars - https://authorwars.com/books/encroachment-80047.html

Overview:

Title: Encroachment
Author: Raymond F. Jones
Year: 1950
Type: Short Fiction

Editions/Publications:

Unknown. Startling Stories, March 1950 (Unknown, Raymond F. Jones, Better Publications, Inc., $0.25, 164 pages, pulp, MAGAZINE)