Out of the Sub-Universe: Introduction

From Author Wars - https://authorwars.com/books/out-of-the-sub-universe-introduction-889478.html

Overview:

Title: Out of the Sub-Universe: Introduction
Author: uncredited
Year: 1961
Type: Essays

Editions/Publications:

Unknown. Amazing Stories, April 1961 (Unknown, uncredited, Ziff-Davis Publishing Company, $0.50, 196 pages, digest, MAGAZINE)