Science fiction special.
Conklin, Groff,1904-1968.Possible tomorrows.
Wollheim, Donald A.Trilogy of the future.
London : Sidgwick and Jackson,
1974.
Contents: Possible tomorrows / edited by Groff Conklin. This collection originally published: as 'Five-odd', New York : Pyramid, 1964 ; and as 'Possible tomorrows', London : Sidgwick and Jackson, 1972 - Trilogy of the future / edited by Donald Wollheim. This collection originally published: as 'Ace science fiction reader'. New York : Ace Books, 1971 ; and as 'Trilogy of the future', London : Sidgwick and Jackson, 1972