World of Ptavvs; A Gift from Earth; Neutron Star
From Author Wars - https://authorwars.com/books/world-of-ptavvs-a-gift-from-earth-neutron-star-3183039.html
Overview:
- Title: World of Ptavvs; A Gift from Earth; Neutron Star
- Author: Larry Niven
- Year: 1991
- Type: Omnibuses
- Series: Known Space
Editions/Publications:
- Unknown. World of Ptavvs; A Gift from Earth; Neutron Star (Unknown, Larry Niven, Book-of-the-Month Club, $11.95, 160+254+285 pages, Trade Paperback, Omnibus)