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File:Tests on clay materials available in Illinois coal mines (IA testsonclaymater18stul).pdf

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Tests on clay materials available in Illinois coal mines   (Wikidata search (Cirrus search) Wikidata query (SPARQL)  Create new Wikidata item based on this file)
Author
Stull, R. T. (Ray Thomas), 1875-1944
Hursh, Ralph K. (Ralph Kent), 1885-
Illinois State Geological Survey
University of Illinois (Urbana-Champaign campus). Engineering Experiment Station
United States. Bureau of Mines
Title
Tests on clay materials available in Illinois coal mines
Volume Coal Mining Investigations No.18
Publisher
Urbana, Illinois State Geological Survey, University of Illinois
Description
At head of title: State of Illinois. State Geological Survey. Frank W. DeWolf, chief
Prepared under a cooperative agreement between the Illinois State Geological Survey, the Engineering Experiment Station of the University of Illinois, and the U.S. Bureau of Mines

Subjects: Clay; Coal mines and mining
Language English
Publication date 1917
publication_date QS:P577,+1917-00-00T00:00:00Z/9
Current location
university_of_illinois_urbana-champaign; americana
Accession number
testsonclaymater18stul
Notes Item does not contain copyright information.
Authority file  OCLC: 1157999766
Source
Internet Archive identifier: testsonclaymater18stul
https://archive.org/download/testsonclaymater18stul/testsonclaymater18stul.pdf

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Public domain
This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929.
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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:Tests_on_clay_materials_available_in_Illinois_coal_mines_(IA_testsonclaymater18stul).pdf

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