Worlds of Tomorrow, May 1965
| Book | What Size Are Giants? |
| Editor | Frederik Pohl |
| Publisher | Robert M. Guinn, Galaxy Publishing Corporation |
| Contributing Writer | Alexei Panshin, Michael Kurland, Dick Moore, Zenna Henderson, John Sutherland (3), Tom Purdom, Ben Bova, Frederik Pohl |
| Cover Art by | George Schelling |
| Subscription Editor | Mavis Fisher |
| Production Director/Manager | David Perton |
| Advertising Manager/Coordinator | Dave Geller Assoc. |
| Printed by | The Guinn Co., Inc. |
| Periodical Title | Worlds of Tomorrow |
| Associate Editor | Diane Sullivan |
| Format | Magazine |
| Language | English |
| Location | New York |
| Cover Date | 1965-05 |
| Pages / Font | 162 pages |
| Price | 50¢ |
| Volume Number | 3 |
| Issue Number | 13 |
| Chapters | NOVELETTES What Size Are Giants? by Alexei Panshin Bond of Brothers by Michael Kurland Bogeymen by Dick Moore SHORT STORIES The Effectives by Zenna Henderson Dem of Redrock Seven by John Sutherland SCIENCE FEATURES The Alien Psyche by Tom Purdom Explosions in Space by Ben Bova DEPARTMENTS Editorial by Frederik Pohl Coming... Tomorrow |
| Notes | Printed in the U.S.A. |
Added by auboisdormant · Last edited by thethrowback