University of Illinois Urbana-Champaign

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Showing 1–30 of 622 items
Thumbnail for Road Materials Resources of Brown County, Illinois
Road Materials Resources of Brown County, Illinois
Apfel, E.T.; Holmes, C.D.; Root, T.B.

Thumbnail for Road Materials Resources of Scott County, Illinois
Road Materials Resources of Scott County, Illinois
Apfel, E.T.; Holmes, C.D.; Bell, A.H.; Root, T.B.

Thumbnail for Road Materials Resources of Morgan County, Illinois
Road Materials Resources of Morgan County, Illinois
Apfel, E.T.; Holmes, C.D.; Bell, A.H.; Root, T.B.

Thumbnail for Road Materials Resources of Pike County, Illinois
Road Materials Resources of Pike County, Illinois
Apfel, E.T.; Holmes, C.D.; Bell, A.H.; Root, T.B.; Branson, C.C.