Kim Stanley Robinson in Orbit (2012-05-22)
Book 14
Carl Sagan (1982)
Publication of Limited Circulation 1
Carl Sagan (June 21, 1973)
Publication of Limited Circulation 1
David Brower, Kenneth Brower in Omni Magazine (10/01/1978)
Magazine Article 1
Stanislaw Lem in Mariner Books (1986-11-24)
Book 1
Larry Niven in Simon and Schuster (1985-09-11)
Book 2
Freeman Dyson in Science (June 18, 1960)
Journal Article 1
Isaac Asimov, Leonard Nimoy (Mar 2, 2011)
Internet Video 1
Larry Niven, Jerry Pournelle in Pocket Books (1991-03-01)
Book 2
HG Wells in SmartBookWorms (2010-06-14)
Book 1
Anders Sandberg (Unknown)
Internet Article 3
