Book Sources
editEncyclopedia of Science Fiction by Robert Holdstock (1978) ISBN 0706407563 & ISBN 0861781864
The World of Science Fiction, 1926-1976 by Lester del Rey (1980) ISBN 0824014464
Science Fiction of the 20th Century by Frank M. Robinson (1999) ISBN 1888054298
The Creation of Tomorrow by Paul A. Carter (1977) ISBN 0231042108
Isaac Asimov: The Foundations of Science Fiction by James Gunn (1982) ISBN 0195030605
Conversations with Isaac Asimov by Carl Freedman (2005) ISBN 1578067383
The Futurians by Damon Knight (1977) ISBN 0381982882
Future Perfect Revised Edition by H. Bruce Franklin (1978) ISBN 0195023226