By William Barrett
By Gabrielle Vincent
By David Conway
By Patrick Eagar
By Ettore Camesasca
By Peter Maas
By Pamela Westland
By Geoffrey Taylor Bull
By Edward Jablonski
By J. D. Bernal
By algis budrys
By Colin Wilson
By Frederick Fyvie Bruce
By Christine Bernard
By Mike Fearon
By Frederick Dunstan
By A. E. Van Vogt
By Jan Cremer, R.E. Wyngaard, A. Trocchi
By G. Legman
By Robert Ardrey
By Seymour Fisher
By Michel Parry, Milton Subotsky