The Crystal Planetoids

From Author Wars - https://authorwars.com/books/the-crystal-planetoids-838693.html

Overview:

Title: The Crystal Planetoids
Author: Ned Hadley
Year: 1942
Type: Interior Art

Editions/Publications:

Unknown. Amazing Stories, May 1942 (Unknown, Ned Hadley, Ziff-Davis Publishing Company, $0.25, 276 pages, pulp, MAGAZINE)
Unknown. Science Fiction Adventure Classics, May 1972 (Unknown, Ned Hadley, Ultimate Publishing Co., Inc., $0.60, 134 pages, digest, MAGAZINE)