World of Ptavvs; A Gift from Earth; Neutron Star
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Overview:
- Title: World of Ptavvs; A Gift from Earth; Neutron Star
- Author: Larry Niven
- Year: 1991
- Publisher: Book-of-the-Month Club
- Price: $11.95
- Pages: 160+254+285
- Binding: Trade Paperback
- Type: Omnibus
- Title Reference: World of Ptavvs
- Notes: Unknown