- Publication Title:
- Army Amateur Radio System: Cryptography; Jan. 3, 1939.
- Display Title:
- Circular 5 and 6. 6-5. Army Amateur Radio System: Cryptography; Jan. 3, 1939.
- Corporate Agency Authors:
- Signal Office and War Department
- Sort Author:
- Signal Office
- Date:
- [1939.]
- Publish Date ISO Format:
- 1939-01-01T00:00:00Z
- Publication Start:
- 19390101
- Publication End:
- 19391231
- Corporate/Agency Author:
- Signal Office
- Publication month:
- 13
- Publication year:
- 1939
- SuDoc number:
- W 42.4:6-5
- Description:
- 7 p.
- Notes:
- [Issued with perforations.]
- Notes:
- [Issued with perforations.] ‡ Official Use. Not Available.
- Availability:
- ‡ Official Use. Not Available.
- Monthly Catalog date:
- March 1939
- Monthly Catalog issue number:
- 531
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1939-03-01T00:00:00Z
- Record start page number:
- 427