Triplanetary
From Author Wars - https://authorwars.com/publications/triplanetary-274148.html
Overview:
- Title: Triplanetary
- Author: E. E. 'Doc' Smith
- Year: 1972
- Publisher: Pyramid Books
- Price: $0.75
- Pages: 240
- Binding: Paperback
- Type: Novel
- Title Reference: Triplanetary
- Notes: Stated seventh printing of the Pyramid edition. Cover art credited on the back cover. "T-2174" on the cover.