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Sand and Gravel Resources of Sangamon County, Illinois
Alan Martin Jacobs
D. L. Stevenson (David Lloyd)
Gordon S. Fraser
Harold Wesley Jackman
James Watson Baxter
Norman C. Hester
Paul C. Heigold
R. N. Leamnson
Russel Allen Peppers
Willis L. Busch
Illinois State Geological Survey
Alan T. James
H. H. Damberger
Josephus Thomas
Richard Charles Anderson
Roy John Helfinstine
Henry Phillip Ehrlinger
出版
Illinois State Geological Survey
, 1969
URL
http://books.google.com.hk/books?id=-T-8sfqhfz0C&hl=&source=gbs_api