Ringworld Larry Niven

Spectrum Literary Agency, Inc.

Ringworld (English Edition)                      

Del Rey

Ringworld Throne: 3                              

Ringworld (S.F. Masterworks) by Larry Niven (2005-06-09)

Mantikore Verlag

Ringwelt: Ein Science Fiction Klassiker von Larry Niven

Spectrum Literary Agency, Inc.

The Ringworld Engineers (English Edition)        

Tor Books

Ringworld's Children (English Edition)          

Tor/Seven Seas

Ringworld: The Graphic Novel, Part One [Idioma Inglés]

Ballantine Books Inc.

[Ringworld] (By: Larry Niven) [published: June, 1991]

The Ringworld Engineers by Larry Niven (1985-11-12)

The Ringworld Throne by Niven, Larry (1997) Mass Market Paperback