Many Futures, Many Worlds: Theme and Form in Science Fiction

From Author Wars - https://authorwars.com/publications/many-futures-many-worlds-theme-and-form-in-science-fiction-158461.html

Overview:

Title: Many Futures, Many Worlds: Theme and Form in Science Fiction
Author: Thomas D. Clareson
Year: 1977
ISBN-10: 0873381998
Publisher: Kent State University Press
Price: $12.50
Pages: ix+303
Binding: Hardcover
Type: Non-fiction
Title Reference: Critical Methods: Speculative Fiction
Notes: Also published in trade paperback [0-87338-200-5 $5.50] Gives ISBNs of cloth and paper editions twice on copyright page.