The Secret Sentinel (Secret Service Operator #5, anuary-February 1939)
| First published | January 1939 |
|---|---|
| Type | Essay |
Publications (1)
| Date | Publication | Publisher | Type | Page |
|---|---|---|---|---|
| January 1939 | Secret Service Operator #5, January-February 1939 | Popular Publications, Inc. | MAGAZINE | 104 |