Realm of the Tri-Planets
From Author Wars - https://authorwars.com/publications/realm-of-the-tri-planets-352875.html
Overview:
- Title: Realm of the Tri-Planets
- Author: K. H. Scheer
- Year: 1978
- ISBN-10: 0708870066
- Publisher: Orbit
- Pages: 128
- Binding: Paperback
- Type: Chapter Book
- Title Reference: Realm of the Tri-Planets
- Notes: Cover art credited on page 37 of Cowley's "Spacecraft 2000-2100AD"