The Seed of Earth

From Author Wars - https://authorwars.com/books/the-seed-of-earth-1051853.html

Overview:

Title: The Seed of Earth
Author: Ed Valigursky
Year: 1962
Type: Cover Art

Editions/Publications:

Unknown. The Seed of Earth / Next Stop the Stars (Unknown, Ed Valigursky, Ace Books, $0.40, 114+139 pages, dos, Omnibus)