Who Censored Roger Rabbit?

From Author Wars - https://authorwars.com/publications/who-censored-roger-rabbit-366607.html

Overview:

Title: Who Censored Roger Rabbit?
Author: Gary Wolf
Year: 1981
Publisher: St. Martin's Press / BCE
Pages: 181
Binding: Hardcover
Type: Novel
Title Reference: Who Censored Roger Rabbit?
Notes:
- This has a different cover than the trade edition.
- Info from WorldCat and from Amazon.com.
- Cover artist on back flap in ebay.com photo; catalog ID on back cover. "About The Author" on back flap says, "The detective on the book's jacket is portrayed by Mr. Wolf."