A complete collection of 12 issues of 'If: Worlds of Science Fiction' magazine, published in 1967.

If was an American science fiction magazine launched in March 1952 by Quinn Publications, owned by James L. Quinn. It achieved its greatest success under editor Frederik Pohl, winning the Hugo Award for best professional magazine three years running from 1966 to 1968.

Featuring 'The Iron Thorn' by Algis Budrys, 'Forest in the Sky' by Keith Laumer, 'The Soft Weapon' and 'The Ethics of Madness' by Larry Niven, 'The Billiard Ball' by Isaac Asimov, ''The Mortal Mountain' by Roger Zelazny, 'The Road to the Rim' by A. Bertram Chandler, 'The Robots are Here' by Terry Carr, 'Driftglass' by Samuel R. Delaney, 'The Felled Star' by Philip Jose Farmer, 'Faust Aleph Null' by James Blish, 'Bride Ninety-One' by Robert Silverberg, 'Invader' by Harl Vincent, 'Enemy of the Silkies' by A. E. Van Vogt, 'Ocean On Top' by Hal Clement and 'All Judgement Fled' by James White and many more.

Condition: Excellent.

Publisher: Quinn Publications, 1967 (Out of Print)
Number of pages: 160
Format: Soft Cover
Size: 5" x 8" (135mm x 195mm)
Condition: VF - Very Fine