Four-Day Planet
From Author Wars - https://authorwars.com/publications/four-day-planet-1027280.html
Overview:
- Title: Four-Day Planet
- Author: H. Beam Piper
- Year: 2011
- Publisher:
- Binding: ebook
- Type: Novel
- Title Reference: Four-Day Planet
- Notes: Actual publisher is not listed. The title page is a facsimile of the 1979 Ace edition including a cover art credit for Michael Whelan.