Visitors

From Author Wars - https://authorwars.com/books/visitors-778981.html

Overview:

Title: Visitors
Author: Tony Gleeson
Year: 1977
Type: Interior Art

Editions/Publications:

Unknown. Fantastic, December 1977 (Unknown, Tony Gleeson, Ultimate Publishing Co., Inc., $1.00, 134 pages, digest, MAGAZINE)
Unknown. Masters of Science Fiction: Jack Dann (Unknown, Tony Gleeson, Centipede Press, ISBN-10: 9781613473047, $65.00, 751 pages, Hardcover, Collection)