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by: Gerald Thomas Gregory · Richard WardPaperback
ISBN: 978-0-7175-0621-7 ISBN-10: 0-7175-0621-5 |
| See also: | ||
| 1974 | Paperback | Workrate: Bk. 5 |
| 1974 | Paperback | Workrate: Bk. 6 |
| 1973 | Paperback | Workrate: Bk. 1 |
| 1973 | Paperback | Workrate: Bk. 3 |
| 1973 | Paperback | Workrate: Bk. 4 |