Trespass

From Author Wars - https://authorwars.com/books/trespass-2021594.html

Overview:

Title: Trespass
Author: Fletcher Knebel
Year: 1969
Type: Novels

Variant Titles:

1970. Gamal

Editions/Publications:

Unknown. Trespass (Unknown, Fletcher Knebel, Doubleday, ISBN-10: 038506442X, $6.95, 371 pages, Hardcover, Novel)
Unknown. Trespass (Unknown, Fletcher Knebel, Charter, ISBN-10: 044182336X, 310 pages, Paperback, Novel)