Anywhen
James Blish
The Early Pohl
Frederik Pohl
Nightfall and Other Stories
Isaac Asimov
Asimov's Mysteries
Time and Stars
Poul Anderson
The Martian Way and Other Stories
Earth Is Room Enough
A Gun for Dinosaur and Other Imaginative Tales
L. Sprague de Camp
The Killer Thing
Kate Wilhelm
Beyond the Barrier
Damon Knight