9780399120312 | Putnam Pub Group, September 1, 1977, cover price $9.95 |
About this edition: Little wear to boards.
9780765326546 | 1 edition (Tor Books, June 8, 2010), cover price $22.99 |
About this edition: Milton Firebrass, once Mark Twain's enemy and now his greatest ally, plans to build a giant airship that can fly to the North Pole of Riverworld.
9780345419699 | Del Rey, August 1, 1998, cover price $14.95 |
About this edition: Genghis Khan, Alice, Sir Richard Burton, Mark Twain, Peter Frigate, and millions of others mysteriously resurrected on the planet Riverworld wander along the planet's twisting river in search of the master beings who brought them all back to life
9780441138173 | Reissue edition (Ace Books, December 1, 1988), cover price $3.95 |
About this edition: Genghis Khan, Alice, Sir Richard Burton, Mark Twain, Peter Frigate, and millions of others mysteriously resurrected on the planet Riverworld wander on the planet's twisting river in search of the master beings who brought them all back to life
9780425086780 | Berkley Pub Group, January 1, 1984, cover price $3.95 |
About this edition: Milton Firebrass, once Mark Twain's enemy and now his greatest ally, plans to build a giant airship that can fly to the North Pole of Riverworld.
9781429949149 | 1 edition (Tor Books, June 8, 2010), cover price $9.99