TY  - BOOK
AU  - Ries,Heinrich
AU  - Gallup,F.L.
TI  - The clays of Wisconsin and their uses
T2  - Wisconsin. Geological and natural history survey. Bulletin
AV  - QE179 .A2 no. 15
PY  - 1906///
CY  - Madison, Wis.
PB  - Published by the state
KW  - Clay
KW  - Wisconsin
KW  - Sand
ER  -