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by Larry NivenMass Market Paperback details (USA). details (UK). details (Germany). details (Canada). ISBN: 978-0-345-26009-3 ISBN-10: 0-345-26009-0 Del Rey · 1981 |
| See also: | ||
| 1997 | Paperback | The Ringworld Engineers |
| 1985 | Mass Market Paperback | The Ringworld Engineers |
| 1980 | Hardcover | The Ringworld Engineers |
| 1979 | Hardcover | The Ringworld Engineers |