The Foundation Trilogy

From Author Wars - https://authorwars.com/publications/the-foundation-trilogy-735686.html

Overview:

Title: The Foundation Trilogy
Author: Isaac Asimov
Year: Unknown
Publisher: Avon
Price: $3.75
Pages: 200+191+224
Binding: Paperback
Type: Omnibus
Title Reference: Second Foundation
Notes: Box set of the Foundation Trilogy