John W. Campbell, Jr.: Science Fiction Genius

From Author Wars - https://authorwars.com/publications/john-w-campbell-jr-science-fiction-genius-453056.html

Overview:

Title: John W. Campbell, Jr.: Science Fiction Genius
Author: John W. Campbell, Jr.
Year: 2013
Publisher: Absolutely Amazing Ebooks
Price: $1.99
Binding: ebook
Type: Collection
Title Reference: The Brain Stealers of Mars
Notes: Edited by William R. Burkett, Jr. Info from Amazon.com and its Look Inside contents page. It's possible that the title page for "The Contest of the Planets" [sic] has the correct title of the work.