Under Observation (Captain Future, Spring 1940)

From Author Wars - https://authorwars.com/books/under-observation-captain-future-spring-1940-2209294.html

Overview:

Title: Under Observation (Captain Future, Spring 1940)
Author: various
Year: 1940
Type: Essays
Series: Under Observation

Editions/Publications:

Unknown. Captain Future, Spring 1940 (Unknown, various, Better Publications, Inc., $0.15, 132 pages, pulp, MAGAZINE)
Unknown. Captain Future, Spring 1940 (Unknown, various, Adventure House, ISBN-10: 9781597985864, $14.95, 130 pages, Trade Paperback, Anthology)