Substance X
| First published | 1981 |
|---|---|
| Series | Tales of Tomorrow (David Houston) #3 |
| Publisher | Leisure Books |
| Format | Paperback |
| Type | Novel |
| Cover art | Attila Hejja |
| Pages | 204 |
| Price | $2.25 |
| ISBN | 0843909617 |
Assumed 1st printing. ISBN on back cover is 0-8439-961-7.
| First published | 1981 |
|---|---|
| Series | Tales of Tomorrow (David Houston) #3 |
| Publisher | Leisure Books |
| Format | Paperback |
| Type | Novel |
| Cover art | Attila Hejja |
| Pages | 204 |
| Price | $2.25 |
| ISBN | 0843909617 |
Assumed 1st printing. ISBN on back cover is 0-8439-961-7.