Supplement to Special publication 140, manual of first-℗Ưorder leveling.
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| Format: | Government Document eBook |
| Language: | English |
| Published: |
[Washington] :
[s.n.],
1937.
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| Subjects: | |
| Online Access: | Electronic resource (PDF) |
| Item Description: | For Special Publication 140, please see Accession Number C4.19..140_2 and Sudoc Number C4.19:140/2. |
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| Physical Description: | 1 online resource (2 pages), digital, PDF file |