| Title: | Economic Paper |
| Title note: | US Bureau of Mines, 1928-1940 |
| Online content: | Free online material via The Online Books Page |
| More information: | Wikidata |
| First renewed issue: | no issue renewals found in CCE |
| First renewed contribution in: | no contribution renewals found in CCE |
This is a US government publication.
| Page responsibility: | John Mark Ockerbloom (ockerblo (at) pobox (dot) upenn (dot) edu) |
| Acknowledgement: | Thanks to Kelsey LeClair for copyright research on this title. |
| Last updated: | August 12, 2021 |
| Machine-readable format: | JSON |
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