| Author | Lester del Rey |
| Format | Paperback |
| Language | English |
| Location | Ballentine Books, Canada |
| First Printing | 1976 |
| Pages / Font | 180 pages |
| ISBN | 034524995X150 |
| Library of Congress Catalog Card Number | 56-9579 |
| Author | Lester del Rey |
| Format | Paperback |
| Language | English |
| Location | Ballentine Books, Canada |
| First Printing | 1976 |
| Pages / Font | 180 pages |
| ISBN | 034524995X150 |
| Library of Congress Catalog Card Number | 56-9579 |