Earth Factor X
From Author Wars - https://authorwars.com/publications/earth-factor-x-11763.html
Overview:
- Title: Earth Factor X
- Author: A. E. van Vogt
- Year: 1976
- ISBN-10: 0879972491
- Publisher: DAW Books
- Price: $1.25
- Pages: 174
- Binding: Paperback
- Type: Novel
- Title Reference: Earth Factor X
- Notes:
- "First DAW printing, August 1976/123456789"
- "Cover art by Deane Cate" on the copyright page; no visible signature
- The interior art piece is not credited, has Gaughan's "JG" on it
- The copyright page has the note "Original title: The Secret Galactics."
- DAW Books No. 206
- Printed in the US
- ISBN derived from catalog ID.