| Copyright Holder | Ian Watson |
| Publisher Series | Ace Science Fiction |
| Publisher | Ace Books |
| Published in/by Arrangement with | Victor Gollancz Ltd |
| Format | Paperback |
| Language | English |
| Location | US |
| Copyright | 1979 |
| First Printing | 1979 |
| Pages / Font | 244 pages |
| ISBN | 0 44 86190 3 |
| Price | $1.95 |
Added by Supernaut1970