Orbits of the Unknown

From Author Wars - https://authorwars.com/books/orbits-of-the-unknown-1982953.html

Overview:

Title: Orbits of the Unknown
Author: John Macklin
Year: 1969
Type: Collections

Variant Titles:

1972. Órbitas do desconhecido

Editions/Publications:

Unknown. Orbits of the Unknown (Unknown, John Macklin, Ace Books, $0.75, 223 pages, Paperback, Collection)