Off Center

From Author Wars - https://authorwars.com/books/off-center-37690.html

Overview:

Title: Off Center
Author: Damon Knight
Year: 1965
Type: Collections

Variant Titles:

1969. Off Centre

Editions/Publications:

Unknown. Off Center / The Rithian Terror (Unknown, Damon Knight, Ace Books, $0.45, 141+111 pages, dos, Omnibus)
Unknown. Off Center (Unknown, Damon Knight, Award Books, $0.75, 155 pages, Paperback, Collection)