Pendulum
From Author Wars - https://authorwars.com/publications/pendulum-236337.html
Overview:
- Title: Pendulum
- Author: John Christopher
- Year: 1969
- Publisher: Lancer Books
- Price: $0.95
- Pages: 288
- Binding: Paperback
- Type: Novel
- Title Reference: Pendulum
- Notes:
Published in June, 1969 (not stated) according to William J. Denholm's Lancer Checklist (Megavore #10, 1980).