Norby's Other Secret

From Author Wars - https://authorwars.com/publications/norbys-other-secret-343748.html

Overview:

Title: Norby's Other Secret
Author: Isaac Asimov, Janet Asimov
Year: 1984
ISBN-10: 0802765254
Publisher: Walker & Co.
Price: $9.95
Pages: 138
Binding: Hardcover
Type: Novel
Title Reference: Norby's Other Secret
Notes: Price (front flap) and cover artist (back flap) from Archive.org copy.