Publisher
- Ballantine5
- Belmont Books5
- Berkley Books5
- Daw Books, Inc.5
- Bantam4
- Cupples & Leon Co.4
- Dover Publications4
- Fawcett Publications4
- Gnome Press4
- The New American Library4
- Avon Publications3
- Berkley Pub. Co.3
- DAW Books3
- DAW Books, Inc., Donald A. Wollheim, Publisher3
- Dell Publishing Company3
- Fawcett Crest3
- G.P. Putnam's Sons3
- Harper & Row3
- Macfadden-Bartell3
- Permabooks3