Letter (Astounding, February 1939): Our Apologies for the "Funny Little Trick." The Coming of UNKNOWN Upset the Schedule After the Cover Was Printed But Before the Magazine Was Made Up. Hubbard and Vincent Both Coming, Though.
| First published | February 1939 |
|---|---|
| Type | Essay |
| Date | Publication | Publisher | Type | Page | |
|---|---|---|---|---|---|
| February 1939 |
|
Astounding Science-Fiction, February 1939 | Street & Smith Publications, Inc. | MAGAZINE | 158 |