- Publication Title:
- Mail matter. Cost ascertainment: Instruction letter F [July 1, 1939], Time studies and expenditures, 1stand 2d-class post offices.
- Display Title:
- Mail matter. Cost ascertainment: Instruction letter F [July 1, 1939], Time studies and expenditures, 1stand 2d-class post offices.
- Corporate Agency Authors:
- Post Office Department
- Sort Author:
- Post Office Department
- Date:
- [1939.]
- Publish Date ISO Format:
- 1939-01-01T00:00:00Z
- Publication Start:
- 19390101
- Publication End:
- 19391231
- Corporate/Agency Author:
- Post Office Department
- Publication month:
- 13
- Publication year:
- 1939
- SuDoc number:
- P 4.5:F/19
- Description:
- 12 p.
- Notes:
- ‡ Official Use. Not Available.
- Availability:
- ‡ Official Use. Not Available.
- Monthly Catalog date:
- August 1939
- Monthly Catalog issue number:
- 536
- Monthly Catalog page number:
- 1
- Monthly Catalog issue date:
- 1939-08-01T00:00:00Z
- Record start page number:
- 1226