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C039

Publication Title: 
Gumbotil as a potential source of rotary drilling mud, bonding clay and bleaching clay : a progress report on the study of Illinois surficial clays
Publication Type: 
Circulars
Author: 
J. E. Lamar, R. E. Grim and R. M. Grogan
Year: 
1938
Price: 
Out of print
Download: 
Circular 39

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