TY  - BOOK
AU  - Branner,John Casper
TI  - The clays of Arkansas,
T2  - U. S. Geological survey. Bulletin
AV  - QE75 .B9 no. 351
PY  - 1908///
CY  - Washington
PB  - Govt. print. off.
KW  - Clay
KW  - Arkansas
N1  - Issued also as House doc. no. 1015, 60th Cong., 2d sess
ER  -