| Author | Keith Laumer |
| Publisher | DAW Books, Inc. |
| Imprint | DAW Books |
| Copyright Holder | Keith Laumer |
| Cover Art by | Frank Kelly Freas |
| Published in/by Arrangement with | Charles Scribner's Sons |
| Format | Paperback |
| Language | English |
| Location | United States |
| Copyright | 1971 |
| Pages / Font | 151 pages |
| Catalog Number | UQ1021 |
| Price | US $0.95 |
| Other | UQ1021-095 |
| Other | 21 |
| Notes | Identifying Codes > Other > 21: chronological order A shorter version of this novel appeared in the August 1969 issue of <i>Analog</i> under the title, <i>The Time Sweepers</i>, and is copyright 1969 by Keith Laumer. |
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