Invaders!

by Jack Dann, Gardner Dozois, William Tenn, Philip K. Dick, Frederik Pohl, Robert Silverberg, Brian W. Aldiss, Tom Purdom, Harvey Jacobs, Raccoona Sheldon, Octavia E. Butler, Damon Knight, R.A. Lafferty, Neal Barrett Jr., James Tiptree Jr., Howard Waldrop, Pat Cadigan

• Science Fiction