Winged Hordes of the Yellow Vulture (Complete Novel)
| First published | May 1939 |
|---|---|
| Type | Serial |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| May 1939 | Secret Service Operator #5, May-June 1939 | Popular Publications, Inc. | MAGAZINE | 7 |
| First published | May 1939 |
|---|---|
| Type | Serial |
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| May 1939 | Secret Service Operator #5, May-June 1939 | Popular Publications, Inc. | MAGAZINE | 7 |