Triplanetary
From Author Wars - https://authorwars.com/publications/triplanetary-274147.html
Overview:
- Title: Triplanetary
- Author: E. E. 'Doc' Smith
- Year: 1968
- Publisher: Pyramid Books
- Price: $0.60
- Pages: 240
- Binding: Paperback
- Type: Novel
- Title Reference: Triplanetary
- Notes:
- "Fifth printing, May 1968", no number line
- Cover artist credited on back cover; no visible signature on cover art.