> Publishers' series
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Congress 51, Sess. 1, Vol. 32:
Fossil wood and lignite of the Potomac formation by F. H. Knowlton
Washington, DC: Gov. Print. Off., 1847- ; Washington, DC: US Gov. Print. Off.
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Congress 49, Sess. 1, Vol. 8:
Trade Guilds of Europe Reports from the consuls of the United States on the trade guilds of Europe and the laws and regulations by which they are governed
Washington, DC: Gov. Print. Off., 1847- ; Washington, DC: US Gov. Print. Off.