University of Illinois Urbana-Champaign

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Showing 7861–7890 of 28,333 items
Thumbnail for Guide to rocks and minerals of Illinois.
Guide to rocks and minerals of Illinois.
Illinois State Geological Survey

Thumbnail for Tests of reinforced concrete tee beams
Tests of reinforced concrete tee beams
Hewes, Floyd Sinnock; Hewes, Clarence Avise