The Big X

From Author Wars - https://authorwars.com/books/the-big-x-1189448.html

Overview:

Title: The Big X
Author: William Teason
Year: 1960
Type: Cover Art

Variant Titles:

1966. La gran X

Editions/Publications:

Unknown. The Big X (Unknown, William Teason, Dell, $0.50, 288 pages, Paperback, Novel)