On SF

From Author Wars - https://authorwars.com/books/on-sf-158200.html

Overview:

Title: On SF
Author: Thomas M. Disch
Year: 2005
Type: Non-fiction

Editions/Publications:

Unknown. On SF (Unknown, Thomas M. Disch, University of Michigan Press, ISBN-10: 0472068962, $24.95, 271 pages, Trade Paperback, Non-fiction)
Unknown. On SF (Unknown, Thomas M. Disch, University of Michigan Press, ISBN-10: 0472098969, $60.00, 271 pages, Hardcover, Non-fiction)