The Rainbow Goblins

From Author Wars - https://authorwars.com/publications/the-rainbow-goblins-308636.html

Overview:

Title: The Rainbow Goblins
Author: Ul de Rico
Year: 1979
ISBN-10: 0446879428
Publisher: Warner Books
Price: $9.95
Pages: [32]
Binding: Hardcover
Type: Chapter Book
Title Reference: The Rainbow Goblins
Notes: Info from Locus #228 (December 1979), which states this is "paper-over-boards" and that there was "a regular hardcover edition last year". Perhaps this means that it was issued without dustjacket with the artwork applied directly to the boards.