Castaways on Chimp Island

From Author Wars - https://authorwars.com/publications/castaways-on-chimp-island-931476.html

Overview:

Title: Castaways on Chimp Island
Author: Sandy Landsman
Year: 1986
ISBN-10: 0689312148
Publisher: Atheneum
Pages: 202
Binding: Hardcover
Type: Novel
Title Reference: Castaways on Chimp Island
Notes: Stated First Edition